Oh my goodness, you’re in for a treat with these chocolate peanut butter cupcakes! That perfect duo of rich cocoa and creamy peanut butter takes me right back to my childhood—sneaking Reese’s cups from my Halloween stash and savoring every bite. I’ve spent years perfecting this recipe to capture that magic in cupcake form.
These aren’t just any cupcakes, my friend. We’re talking ultra-moist dark chocolate cake studded with mini Reese’s Pieces, topped with cloud-like peanut butter frosting, and finished with a whole Reese’s Miniature on top. Every element works together so beautifully you’ll want to make a double batch—trust me, they disappear fast!
Why You’ll Love These Chocolate Peanut Butter Cupcakes
Let me tell you why these cupcakes are downright addictive—I’ve seen grown adults sneak seconds (and thirds) when they think no one’s looking!
- Insanely decadent flavor: That deep dark chocolate cake with melty Reese’s Pieces inside? Pure bliss.
- Surprisingly easy: Box mix shortcuts mean you’re 20 minutes from batter to oven—no fancy skills needed.
- Crowd-pleaser magic: Kids go nuts for the candy filling, adults rave about the peanut butter frosting balance.
- That showstopper finish: The whole Reese’s on top makes everyone feel fancy without any extra work.
Seriously, these disappear faster than cookies at a bake sale. You’ve been warned!
Ingredients for Chocolate Peanut Butter Cupcakes
Here’s everything you’ll need for these heavenly cupcakes—gather them up before you start because once that chocolate aroma hits, you won’t want to stop baking!
- The dry goods:
- 1 (15 oz) box Duncan Hines Dark Chocolate Fudge cake mix (just the powder—don’t prepare it!)
- 1 (3.4 oz) box Jell-O Instant Chocolate Pudding mix (dry powder only)
- ¼ teaspoon salt
- The wet team:
- 4 large eggs (room temperature cracks easier!)
- 1 cup full-fat sour cream (see my note below about subs)
- ¾ cup vegetable oil
- ½ cup whole milk
- 1 tablespoon vanilla extract (yes, a whole tablespoon—this is dessert!)
- The fun stuff:
- 1 bag mini Reese’s Pieces (for stuffing inside)
- 1 batch of my Best Peanut Butter Frosting (recipe link coming!)
- 24 Reese’s Miniatures (one per cupcake—try not to eat them all while baking!)
Ingredient Notes & Substitutions
The dark chocolate cake mix gives the deepest flavor, but regular chocolate works in a pinch. Greek yogurt can sub for sour cream—just add 1 extra tablespoon milk. Almond milk works fine if you’re out of whole milk, but avoid skim—we need that richness! And please, no natural peanut butter in the frosting—it’ll be way too oily. Trust me on this one—I learned the hard way!
How to Make Chocolate Peanut Butter Cupcakes
Okay, let’s get baking! These cupcakes come together so easily—just follow these simple steps and you’ll have a batch of chocolate peanut butter heaven in no time. I’ll walk you through each part so you get perfect results every time.
Step 1: Prepare the Batter
First, grab your biggest mixing bowl—this batter gets voluminous! Dump in the dry cake mix, pudding powder, and salt. Give it a quick whisk to break up any lumps. Now add all the wet ingredients—eggs, sour cream, oil, milk, and that glorious vanilla. Mix on medium until the batter is smooth and shiny, scraping down the sides halfway. You’ll know it’s ready when it looks like thick chocolate pudding with no dry spots.
Step 2: Bake the Cupcakes
Here’s my secret: preheat to 375°F, but once the cupcakes go in, immediately lower it to 350°F. This gives them a perfect initial rise. Fill liners ¾ full (an ice cream scoop works great!) and bake 18-20 minutes. Test with a toothpick—it should come out with moist crumbs, not wet batter. Don’t overbake or they’ll dry out—the cupcakes keep cooking a bit as they cool!
Step 3: Fill and Frost
Once completely cool, use a cupcake corer or small spoon to remove the center of each. Stuff with mini Reese’s Pieces—don’t be shy! For the frosting, load a piping bag with a star tip and swirl from the outside in. Top each with a Reese’s Miniature right when you finish piping so it sticks perfectly. Pro tip: chill cupcakes 10 minutes before coring—it prevents crumbs!
Tips for Perfect Chocolate Peanut Butter Cupcakes
After making these cupcakes more times than I can count (okay, maybe I should stop counting), I’ve picked up some foolproof tricks to make them absolutely perfect every single time:
- Chill before coring: Pop baked cupcakes in the fridge for 10 minutes—they’ll hold their shape better when you scoop out the centers.
- Frosting must-haves: Use a piping bag with a star tip—that swirl makes them look bakery-worthy with zero effort.
- Cold Reese’s hack: Keep Miniatures in the fridge until needed—they won’t melt when you press them into warm frosting.
- Timing trick: Bake a test cupcake first to check your oven—some run hot and can dry them out.
Follow these and you’ll be the cupcake hero at every party—just don’t tell anyone how easy they really are!
Serving and Storing Chocolate Peanut Butter Cupcakes
These cupcakes taste best at room temperature—that’s when the Reese’s filling gets all melty and the frosting stays perfectly fluffy. If you’ve refrigerated them (smart move if it’s warm out!), let them sit on the counter for 20 minutes before serving. For storage, tuck them into an airtight container—they’ll stay fresh for 3 days, though I doubt they’ll last that long!
Want to get ahead? These freeze beautifully for up to a month! Just wrap each unfrosted cupcake tightly in plastic, then thaw at room temp when ready to frost and serve. One quick tip—if you must microwave a cold cupcake, do just 5 seconds to take the chill off without making the chocolate soggy.
Chocolate Peanut Butter Cupcakes Nutritional Information
Okay, let’s be real—we’re not eating these cupcakes for their health benefits! But since you asked, each one clocks in at about 320 calories, with 18g fat (6g saturated), 35g carbs, and 5g protein. These are estimates though—your exact numbers will vary depending on brands and any tweaks you make. The Reese’s Pieces and Miniatures obviously bump up the sugar (about 25g per cupcake), but hey—that’s what makes them so darn irresistible! If you’re counting macros, maybe save these for your cheat day and enjoy every single bite guilt-free.
FAQs About Chocolate Peanut Butter Cupcakes
Can I use natural peanut butter in the frosting?
No way—stick to regular creamy peanut butter! Natural peanut butter separates and makes the frosting greasy. I learned this the hard way when my first batch turned into a soupy mess. The stabilized stuff gives perfect pipeable texture.
How do I prevent dry cupcakes?
Two secrets: don’t overbake (toothpick should have moist crumbs), and use full-fat sour cream. That extra fat keeps them crazy moist even days later. Also—measure your oil carefully; skimping leads to sad, crumbly cupcakes.
Can I freeze these cupcakes?
Absolutely! Freeze unfrosted cupcakes wrapped tightly for up to a month. Thaw at room temp before frosting. The Reese’s Pieces filling stays perfect—they’ll taste just-baked when you’re ready to serve.
What if I don’t have a piping bag?
No worries! Use a zip-top bag with the corner snipped off, or just spread frosting with a knife. The Reese’s on top makes them look fancy no matter what. Taste matters most anyway!
Why dark chocolate cake mix?
It gives deeper, richer flavor that stands up to the peanut butter. Regular chocolate works, but the dark version makes these truly special. Trust me—your taste buds will thank you!
Share Your Chocolate Peanut Butter Cupcakes
I can’t wait to see your creations! Snap a pic of those gorgeous cupcakes and tag me on Instagram—I love seeing your kitchen triumphs. Did you add a fun twist? Tell me in the comments what magical combo you came up with! Nothing makes me happier than hearing how these brought smiles to your crew.
Print
Decadent Chocolate Peanut Butter Cupcakes You’ll Crave
- Total Time: 45 minutes
- Yield: 24 cupcakes 1x
- Diet: Vegetarian
Description
Decadent chocolate cupcakes filled with mini Reese’s Pieces and topped with peanut butter frosting and a Reese’s Miniature.
Ingredients
- 1 (15 oz) box Duncan Hines Dark Chocolate Fudge Cake Mix, unprepared
- 1 (3.4 oz) box Jell-O Instant Chocolate Pudding, unprepared
- 4 large eggs
- 1 cup sour cream
- ¾ cup vegetable oil
- ½ cup whole milk
- 1 tablespoon vanilla extract
- ¼ teaspoon salt
- 1 bag mini Reese’s Pieces
- 1 batch Best Peanut Butter Frosting
- 24 Reese’s Miniatures
Instructions
- Preheat the oven to 375°F. Line a cupcake pan with liners.
- In a large mixing bowl, combine cake mix, pudding, eggs, sour cream, oil, milk, vanilla, and salt. Mix until smooth.
- Fill cupcake liners ¾ full with batter.
- Reduce oven to 350°F and bake for 18-20 minutes.
- Cool cupcakes completely.
- Core cupcakes and fill with mini Reese’s Pieces.
- Prepare peanut butter frosting and pipe onto cupcakes.
- Top each cupcake with a Reese’s Miniature.
Notes
- Use a cupcake corer for neat filling.
- Adjust frosting sweetness to taste.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cupcake
- Calories: 320
- Sugar: 25g
- Sodium: 280mg
- Fat: 18g
- Saturated Fat: 6g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 2g
- Protein: 5g
- Cholesterol: 45mg