Irresistible Chocolate Peanut Butter Cupcakes

Indulge in the Ultimate Delight: Decadent Chocolate Peanut Butter Cupcakes with Creamy Filling

Prepare yourself for an extraordinary treat: these decadent chocolate peanut butter cupcakes are a true celebration of two beloved flavors. Each moist, rich chocolate cupcake is not only crowned with a swirl of luxuriously creamy peanut butter frosting but also filled with a delightful surprise center of the same irresistible frosting. To complete this masterpiece, they’re elegantly topped with delicate chocolate shavings, transforming every bite into a dream for any chocolate and peanut butter enthusiast. This recipe isn’t just about baking; it’s about crafting an experience that elevates a classic flavor combination to a new level of indulgence.

Decadent chocolate cupcake with a generous swirl of peanut butter frosting and chocolate shavings

Why These Chocolate Peanut Butter Cupcakes Are Simply Irresistible


There’s a reason chocolate and peanut butter remain one of the most iconic and universally adored flavor pairings. In these exceptionally moist cupcakes, they unite to create a powerful, unforgettable taste sensation that will captivate all chocolate and peanut butter lovers. This recipe stands out because it doesn’t just combine these flavors; it perfectly balances the intense sweetness of chocolate with the nutty, salty richness of peanut butter in every single component.

Imagine your favorite peanut butter cups, but transformed into a sophisticated, homemade cupcake. These aren’t your average cupcakes; they offer a multi-layered experience. The deeply rich, fudgy chocolate base provides the perfect canvas. But the real magic lies within: each cupcake is secretly filled with a smooth, velvety peanut butter frosting that emerges as a delightful surprise with every bite. This internal filling ensures a burst of peanut butter goodness from the very first taste, before you even reach the generous swirl piped on top. The exterior frosting is equally decadent, culminating in the ultimate chocolate peanut butter dessert that is both visually stunning and incredibly satisfying. The texture is key here – a tender crumb on the cupcake complemented by the creamy, melt-in-your-mouth frosting, making them truly mouth-watering.

A perfectly baked Chocolate Peanut Butter Cupcake nestled in a paper wrapper, ready to be devoured.

Essential Ingredients for Your Perfect Batch


Crafting these delectable chocolate peanut butter cupcakes requires a selection of fresh, quality ingredients that contribute to their rich flavor and perfect texture. While you can find a complete list of measurements, detailed ingredients, and step-by-step instructions in the printable recipe card at the very end of this post, it’s always helpful to understand the core components you’ll be working with. Having all your ingredients at room temperature, especially butter and eggs, is crucial for achieving a smooth, well-emulsified batter and a light, fluffy frosting. This preparation step ensures everything combines seamlessly, leading to the best possible results for your homemade cupcakes.

A collection of ingredients laid out, ready for making delicious Chocolate Peanut Butter Cupcakes, including butter, eggs, flour, cocoa, and peanut butter.

Ingredient Spotlight & Smart Substitutions


Understanding each ingredient’s role can significantly improve your baking and allow for clever substitutions if needed. Here’s a closer look at what makes these chocolate peanut butter cupcakes so special:

FOR THE CHOCOLATE CAKE: The cupcake base is built upon all the classic components of a truly tasty chocolate cupcake. We use high-quality unsweetened cocoa powder for a deep chocolate flavor. A crucial, yet sneaky, addition is a teaspoon of instant coffee dissolved in hot water. Don’t worry, it won’t make your cupcakes taste like coffee; instead, it magically deepens and amplifies the rich chocolate notes, making the cocoa flavor truly pop. Buttermilk is also key, contributing to the incredible moisture and tender crumb. Its acidity reacts with the baking soda, helping the cupcakes rise beautifully and ensuring a light, airy texture. Of course, while I passionately believe that making these from scratch is entirely worth the effort for that superior flavor and texture, you can absolutely swap it out for a good quality chocolate cake mix if you’re short on time. Just follow the package directions for the cake mix, then proceed with our frosting recipe and filling instructions for that signature touch.

FOR THE PEANUT BUTTER FROSTING: This ultra-creamy peanut butter frosting is the star of the show. It’s a simple yet perfect blend of softened butter, powdered sugar (also known as confectioners’ sugar), creamy peanut butter, a touch of milk, pure vanilla extract, and a pinch of salt. Each ingredient plays a vital role:

  • Butter: Use unsalted butter at room temperature for the best creaminess and control over saltiness.
  • Powdered Sugar: This fine sugar dissolves easily, creating a silky-smooth, lump-free frosting texture. Sifting it can prevent lumps.
  • Peanut Butter: Opt for smooth, creamy peanut butter. While natural peanut butter can be used, ensure it’s well-stirred to prevent oil separation, which could affect frosting consistency. For a textural contrast, you could finely chop some roasted peanuts and fold them in at the end.
  • Milk: A tablespoon or two of milk (any kind works: whole, 2%, even almond milk) helps achieve the perfect spreadable or pipeable consistency. Add it gradually to avoid a runny frosting.
  • Vanilla Extract: Enhances all the sweet flavors.
  • Salt: A small amount of salt balances the sweetness and brings out the nutty flavor of the peanut butter and the richness of the chocolate.

Not only is this luscious frosting swirled generously on top of each cupcake, but a delightful portion is also stuffed inside the core for a pleasant surprise, making these cupcakes truly irresistible. This versatile frosting is fantastic for a variety of other desserts too, such as slathered on brownies, piped onto cookies, or even as a filling for layer cakes.

Step-by-Step Guide: Crafting Your Chocolate Peanut Butter Cupcakes


These detailed step-by-step photos and instructions are designed to help you visualize exactly how to make this recipe, ensuring your success. For a convenient, printable version of this recipe, complete with precise measurements and instructions, simply Jump to Recipe at the bottom of this page.

  1. Prepare Your Oven and Muffin Tin: Begin by pre-heating your oven to 350°F (175°C). Line a standard muffin tin with cupcake wrappers. This recipe yields approximately 8 regular-sized cupcakes or 6 jumbo cupcakes, so prepare your liners accordingly.
  2. Cream Wet Ingredients: In a large mixing bowl, using either a stand mixer fitted with a paddle attachment or a hand mixer, cream together the softened unsalted butter and granulated sugar for about 2-3 minutes until the mixture is light, fluffy, and pale in color. This process incorporates air, contributing to the cupcakes’ tender texture. Next, beat in the egg, vanilla extract, and buttermilk until just combined. Be careful not to overmix at this stage.
  3. Infuse with Coffee: In a separate small bowl, stir the instant coffee into the hot water until it is fully dissolved. This coffee will enhance the chocolate flavor without imparting a coffee taste. Gently beat this dissolved coffee mixture into your wet batter until uniformly incorporated.
  4. Combine Dry Ingredients: In another bowl, sift together the all-purpose flour, unsweetened cocoa powder, baking soda, and salt. Sifting helps remove any lumps and aerates the dry ingredients, ensuring a lighter cake.
  5. Mix Wet and Dry: Gradually add the sifted dry ingredients into the wet mixture. Mix on low speed or stir by hand just until everything is combined and no streaks of flour remain. Overmixing can lead to tough cupcakes, so stop as soon as the batter is smooth.
  6. Fill and Bake: Divide the batter evenly among the prepared cupcake wrappers, filling each about two-thirds full. Bake for 25 to 35 minutes, depending on the size of your cupcakes (regular vs. jumbo). To check for doneness, insert a toothpick into the center of a cupcake; it should come out clean. Once baked, remove the muffin tin from the oven and let the cupcakes cool in the pan for a few minutes before transferring them to a wire rack to cool completely. Ensure they are fully cooled before proceeding with filling and frosting.
    Freshly baked chocolate cupcakes cooling in a muffin pan
  7. Prepare Peanut Butter Frosting: To make the creamy peanut butter frosting, add the softened unsalted butter, powdered sugar, and one tablespoon of milk to a clean mixing bowl. Using a hand mixer or stand mixer, start on low speed to combine the ingredients, then gradually increase to medium-high speed and cream until light and fluffy.
  8. Add Flavorings to Frosting: Beat in the smooth peanut butter, vanilla extract, and salt until the frosting is smooth and well combined. If you find the consistency a little too thick to pipe easily, add another tablespoon of milk, one teaspoon at a time, until you reach your desired smoothness.
  9. Prepare for Piping: Fit a piping bag with a large decorative tip (we recommend a 1M tip for beautiful swirls) and fill it with your prepared peanut butter frosting.

    EXPERT TIP – No piping bag? No problem! You can easily create a makeshift piping bag using a sturdy plastic freezer bag. Simply fill the bag with frosting, snip off one corner with scissors to create an opening, and you’re ready to pipe!

    Piping bag filled with peanut butter frosting, ready to decorate chocolate cupcakes
  10. Core and Fill Cupcakes: Once the cupcakes are completely cooled, use a small knife or a cupcake corer to carefully cut a small core out of the center of each cupcake. Don’t discard the removed cake piece entirely; you’ll need the top part. Fill the hollowed-out center with a generous dollop of the peanut butter frosting. This hidden filling is what truly sets these cupcakes apart!
    A chocolate cupcake with its core removed, ready for filling with peanut butter frosting
  11. Frost and Garnish: Replace the top part of the cored cake piece back onto the filled cupcake. Then, using your piping bag, create a beautiful swirl of the remaining peanut butter frosting on top of each cupcake. For an extra touch of elegance and flavor, sprinkle on some chocolate shavings, finely chopped roasted peanuts, or even mini chocolate chips, if desired.

Frequently Asked Questions & Expert Tips for Success


Can I make these chocolate peanut butter cupcakes ahead of time?

Absolutely! You can prepare the cupcakes a day or even two in advance. Store the unfrosted cupcakes in an airtight container at room temperature to prevent them from drying out. Frost them closer to serving time for the freshest appearance and best texture. If you need to prepare the frosting ahead of time, it can be stored in an airtight container in the refrigerator for up to 3-4 days. Allow it to come to room temperature and re-whip it briefly before piping.

Can I freeze chocolate peanut butter cupcakes?

Yes, these cupcakes are freezer-friendly! To freeze, place the *unfrosted and unfilled* cupcakes in an airtight container or freezer bag. They can be stored in the freezer for up to 3 months. It’s best to leave the paper liners on when freezing. When you’re ready to enjoy them, thaw at room temperature and then proceed with filling and frosting. You can also pre-make the peanut butter frosting and store it in an airtight container or piping bag in the freezer for 2-3 months. Thaw it in the refrigerator overnight, then let it come to room temperature and give it a quick whip before using.

What if my peanut butter frosting is too thick or too thin?

The consistency of your frosting can vary based on factors like butter temperature and the type of peanut butter used. If your frosting is too thick, add more milk (or heavy cream for extra richness) one teaspoon at a time, beating well after each addition until you reach the desired consistency. If it’s too thin, try adding a tablespoon or two more of sifted powdered sugar until it thickens up. If it’s still too loose, chilling the frosting for 15-20 minutes can help.

Can I use crunchy peanut butter for the frosting?

While the recipe calls for smooth peanut butter for the creamiest texture, you can certainly experiment with crunchy peanut butter if you enjoy a little texture in your frosting. Be aware that the crunchy bits might make piping slightly more challenging, especially with smaller tips. For best results with crunchy peanut butter, you might want to use a wider piping tip or spread the frosting with a knife.

A chocolate peanut butter cupcake cut open to reveal a luscious peanut butter filling inside, showcasing its decadent layers.

Creative Serving & Garnishing Ideas


These chocolate peanut butter cupcakes are already a showstopper on their own, but a few creative serving and garnishing ideas can elevate them even further. Our favorite cupcake wrappers not only provide ease of baking but also lend a pretty presentation, though any cupcake liner will work beautifully. For an extra layer of surprise and indulgence, consider pressing a mini peanut butter cup into the center of the cupcake before adding the internal frosting fill – a delightful bonus for any sweet tooth! When it comes to garnishes, the possibilities are delicious and plentiful. Classic chocolate shavings add an elegant touch, while finely chopped roasted peanuts provide a wonderful textural contrast and enhance the nutty flavor. Mini chocolate chips can create a playful aesthetic, and quartered peanut butter cups placed on top make a bold, thematic statement. Consider serving these alongside a cold glass of milk, a hot cup of coffee, or even a scoop of vanilla bean ice cream for an ultimate dessert experience. They are perfect for birthdays, parties, potlucks, or simply as a special treat for yourself!

Discover More Chocolate Peanut Butter Delights


If you’ve fallen in love with the magic of chocolate and peanut butter, then you’re in for a treat! This iconic duo can be enjoyed in countless forms beyond these amazing cupcakes. Explore some of our other cherished recipes that beautifully highlight this classic flavor combination, perfect for satisfying any craving:

  • Homemade Peanut Butter Cups
  • Effortless No Bake Peanut Butter Bars
  • Irresistible Chocolate Peanut Butter Balls
  • Chewy Chocolate Peanut Butter Cookies
  • Rich Peanut Butter Chocolate Chunk Bars
  • Fudgy Brownies with Creamy Peanut Butter Frosting
  • Decadent Chocolate Peanut Butter Lasagna

I adore spending time in the kitchen, experimenting with new flavors and sharing my culinary experiences with all of you! It can be challenging to remember to check back every day, which is why I offer a convenient newsletter delivered straight to your inbox every time a new recipe posts. Simply subscribe to start receiving your free daily recipes and never miss out on delicious inspiration!

A close-up of a finished Chocolate Peanut Butter Cupcake, topped with rich frosting and chocolate shavings.

Chocolate Peanut Butter Cupcakes

These aren’t just any ordinary cupcakes; they feature a moist, rich chocolate base filled with silky smooth peanut butter frosting, then elegantly topped with an extra swirl of the same creamy frosting for the ultimate chocolate peanut butter indulgence!

5 from 2 votes

IMPORTANT – There are often Frequently Asked Questions within the blog post that you may find helpful. Simply scroll back up to read them!

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Course: Dessert
Cuisine: American
Servings: 8 cupcakes
1 hour
Calories: 702
Author: Amanda Davis

Ingredients

For the Chocolate Cupcakes

  • 11 Tbsp unsalted butter at room temperature
  • 1 cup granulated sugar
  • 1 large egg
  • 1 tsp vanilla extract
  • ¼ cup buttermilk
  • ½ cup hot water
  • 1 tsp instant coffee granules
  • 1 cup all-purpose flour
  • 6 Tbsp unsweetened cocoa powder
  • 1 tsp baking soda
  • ½ tsp salt

For the Peanut Butter Frosting

  • 8 Tbsp unsalted butter 1 stick, at room temperature
  • 2 cups powdered sugar aka confectioners sugar, sifted
  • 1 cup smooth peanut butter
  • 1-2 Tbsp milk depending on desired consistency
  • 1 tsp vanilla extract
  • ¼ tsp salt

Things You’ll Need

  • Hand mixer or stand mixer
  • Muffin pan
  • Sifter
  • Piping bag and large tip (e.g., Wilton 1M)

Before You Begin & Storage Tips

  • We achieved the beautiful frosting swirls using Wilton 12” disposable piping bags and a 1M star tip.
  • Store your finished, frosted chocolate peanut butter cupcakes at room temperature in an airtight container for 3-4 days to maintain their freshness and moisture.
  • For the best consistency and to avoid lumps, ensure your butter for both the cake and frosting is at true room temperature.
  • Sifting the powdered sugar for the frosting is highly recommended to ensure a smooth, silky texture.

Instructions

  • Pre-heat your oven to 350 F (175 C). Prepare a muffin tin by lining it with 8 regular-sized or 6 jumbo cupcake wrappers.
  • In a large bowl, cream together the softened butter and granulated sugar for 2-3 minutes using a stand mixer or hand mixer until light and fluffy. Beat in the egg, vanilla extract, and buttermilk until just combined.
  • In a separate small bowl, stir the instant coffee into the hot water until it fully dissolves. Add this mixture to the wet batter and beat until well incorporated.
  • In another bowl, sift together the all-purpose flour, unsweetened cocoa powder, baking soda, and salt. Gradually add these dry ingredients to the wet mixture, mixing on low speed until just combined and no dry streaks remain. Avoid overmixing.
  • Evenly fill the prepared cupcake wrappers with the batter, filling each about two-thirds full.
  • Bake for 25 to 35 minutes (or slightly longer for jumbo cupcakes), or until a toothpick inserted into the center comes out clean. Let the cupcakes cool completely on a wire rack before attempting to fill or frost them.
  • To prepare the peanut butter frosting: In a mixing bowl, combine the softened butter, sifted powdered sugar, and 1 tablespoon of milk. Cream these ingredients together using a hand mixer or stand mixer, starting on low speed and increasing to medium-high until smooth and fluffy.
  • Beat in the smooth peanut butter, vanilla extract, and salt until the frosting is light and creamy. If the consistency is too thick for piping, add the remaining tablespoon of milk (or a little more, 1 tsp at a time) until it reaches a spreadable and pipeable texture.
  • Fit a piping bag with a large decorative tip (like a 1M star tip) and fill it with the prepared peanut butter frosting. Alternatively, use a sturdy plastic baggie and snip off one corner.
  • Using a small knife or cupcake corer, carefully cut a small core out of the center of each cooled cupcake. Fill the hollowed center with a portion of the peanut butter frosting.
  • Replace the top part of the cored cake piece over the filled frosting. Finish by piping a generous swirl of the remaining frosting on top of each cupcake. If desired, sprinkle with chocolate shavings, chopped peanuts, or mini chocolate chips for garnish. Enjoy your delightful chocolate peanut butter cupcakes!

Nutrition Information (Estimated)

Serving: 1cupcake | Calories: 702cal | Carbohydrates: 81g | Protein: 12g | Fat: 39g | Saturated Fat: 20g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 13g | Trans Fat: 1g | Cholesterol: 93mg | Sodium: 552mg | Potassium: 325mg | Fiber: 3g | Sugar: 58g | Vitamin A: 876IU | Calcium: 42mg | Iron: 2mg
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The recipes on this blog are tested with a conventional gas oven and gas stovetop. It’s important to note that some ovens, especially as they age, can cook and bake inconsistently. Using an inexpensive oven thermometer can assure you that your oven is truly heating to the proper temperature. If you use a toaster oven or countertop oven, please keep in mind that they may not distribute heat the same as a conventional full sized oven and you may need to adjust your cooking/baking times. In the case of recipes made with a pressure cooker, air fryer, slow cooker, or other appliance, a link to the appliances we use is listed within each respective recipe. For baking recipes where measurements are given by weight, please note that results may not be the same if cups are used instead, and we can’t guarantee success with that method.