Dessert

Peanut Butter Brownie Cups Recipe

ByAndria Russo February 6, 2026February 6, 2026

Introduction

These Peanut Butter Brownie Cups combine the rich, fudgy texture of chocolate brownies with the creamy sweetness of peanut butter swirls. Perfect for a quick treat or a party dessert, they are easy to make and irresistibly delicious.

The image shows a close-up of a rich chocolate cupcake with two layers. The bottom layer is a dark, moist chocolate cake with a slightly crumbly texture. On top of this is a thick layer of creamy, light brown peanut butter frosting that slowly drips down the sides. The top layer is another smaller cupcake cut in half, revealing swirls of chocolate and peanut butter inside with visible chocolate chips embedded in the frosting and cake. The cupcake is placed on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

1/2 cup (115g) melted butter
1 cup (200g) granulated sugar
1 tsp vanilla extract
2 large eggs
1/3 cup (35g) cocoa powder
3/4 cup (95g) all-purpose flour
1/4 tsp baking powder
1/4 cup peanut butter
1/4 cup powdered sugar
1/4 cup chocolate chips

Instructions

Step 1: In a mixing bowl, combine the melted butter and granulated sugar until smooth.
Step 2: Add the vanilla extract and eggs, whisking until fully incorporated.
Step 3: Sift in the cocoa powder, all-purpose flour, and baking powder. Gently mix until just combined, being careful not to overmix to keep the batter light.
Step 4: Spread the batter evenly into a muffin tin, filling each cup about two-thirds full.
Step 5: In a separate bowl, mix the peanut butter with powdered sugar until smooth. Drop a small amount into the center of each brownie cup, then use a toothpick to swirl the peanut butter through the batter.
Step 6: Sprinkle chocolate chips over the top of each brownie cup for extra sweetness.
Step 7: Bake for 20 to 25 minutes, until the edges are set and a toothpick inserted into the chocolate part (avoiding the peanut butter swirl) comes out with moist crumbs.
Step 8: Let the brownie cups cool in the pan for about 10 minutes before transferring to a wire rack to cool completely.

Tips & Variations

Use high-quality cocoa powder for a richer chocolate flavor.
Warm the peanut butter mixture slightly first to make swirling easier.
Add mini marshmallows or chopped nuts to the batter for extra texture.
Use a piping bag to create neat peanut butter swirls for a professional look.

Storage

Store leftover brownie cups in an airtight container at room temperature for up to 3 days or refrigerate for up to a week. Reheat gently in the microwave for 10-15 seconds if desired. For longer storage, freeze them wrapped tightly for up to 2 months; thaw before serving.

How to Serve

The image shows two rich chocolate brownies stacked on top of each other on a white marbled surface. The bottom brownie has a thick layer of creamy peanut butter frosting that drips slightly down its dark brown cake sides. The top brownie is cut in half and placed on the frosting layer, revealing a swirled mix of light brown peanut butter and darker chocolate inside. Both brownies are topped with large, glossy chocolate chips that add texture and shine. The close-up view highlights the moist crumb and smooth frosting layers. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use crunchy peanut butter instead of smooth?

Yes, crunchy peanut butter will add a pleasant texture to the swirls, but make sure it is well mixed with the powdered sugar for smooth swirling.

How do I know when the brownie cups are done baking?

Check that the edges have set and insert a toothpick into the chocolate portion (avoiding the peanut butter swirl). It should come out with moist crumbs but not wet batter.