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Dark Chocolate Cupcakes with Peanut Butter Frosting

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Indulge in these tender dark chocolate cupcakes topped with creamy peanut butter frosting, balancing intense cocoa flavor with rich peanut butter.

  • Author: daniel-kim
  • Prep Time: 15 minutes
  • Cook Time: 22 minutes
  • Total Time: 45 minutes
  • Yield: 12 cupcakes 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 1 cup all-purpose flour
  • 1/2 cup Hershey’s Special Dark cocoa powder
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1/3 cup vegetable oil
  • 1 cup granulated sugar
  • 1 large egg
  • 1 teaspoon pure vanilla extract
  • 1/2 cup buttermilk
  • 1/2 cup hot coffee or hot water
  • 5 tablespoons unsalted butter, softened
  • 1 cup creamy peanut butter
  • 1 cup confectioners’ sugar
  • 1/3 cup heavy cream
  • 1 teaspoon pure vanilla extract
  • 1/4 teaspoon salt
  • Crushed Reese’s Pieces (optional)

Instructions

  1. Preheat the oven to 350°F (177°C) and line a muffin pan with cupcake liners.
  2. Whisk together the flour, cocoa powder, baking soda, baking powder, and salt in a medium bowl.
  3. Whisk together the oil, sugar, egg, vanilla extract, and buttermilk until well combined in a large bowl.
  4. Gradually combine the dry ingredients with the wet ingredients, then add hot coffee or hot water and whisk until smooth.
  5. Fill the cupcake liners about 2/3 full with batter and bake for 20 to 22 minutes.
  6. Let the cupcakes cool in the pan for 10 minutes, then transfer them to a cooling rack.
  7. Beat the softened butter until creamy, then add the peanut butter, confectioners’ sugar, heavy cream, vanilla extract, and salt and beat until fluffy.
  8. Adjust the frosting consistency by adding more confectioners’ sugar or heavy cream if needed.
  9. Frost the cooled cupcakes and sprinkle with crushed Reese’s Pieces if desired.
  10. Store any leftover cupcakes in the refrigerator for up to 3 days.

Notes

Measure flour by spooning into the cup and leveling with a knife. Chill frosting briefly if too soft.

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