Brownie Cupcakes With Peanut Butter Frosting

Brownie Cupcakes with Peanut Butter Frosting and Chocolate Sprinkles.

Ingredients for Cupcakes

  • 6 tablespoons (3/4 stick) unsalted butter, cut into 4 pieces
  • 1 1/4 s semisweet chocolate chips (about 8 ozs.)
  • 3 ozs. unsweetened chocolate, chopped
  • 1/2 brown sugar, packed
  • 1/3 sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 all purpose flour
  • 1/3 walnuts, toasted, chopped
  • 1/4 teaspoon salt

Ingredients for Frosting

  • 1 cup powdered sugar
  • 3/4 creamy peanut butter (do not use old-fashioned or freshly ground)
  • 1/4 (1/2 stick) unsalted butter, room temperature
  • 1/4 teaspoon vanilla extract
  • 4 teaspoons (approximately) whipping cream, optional
  • chocolate shavings or chocolate sprinkles



  1. Preheat oven to 350°. Line 10 standard muffin cups with paper liners.
  2. Combine butter, 1/2 cup chocolate chips and unsweetened chocolate in top of double boiler set over simmering water. Stir until mixture is melted and smooth. Remove from over water.
  3. Whisk both sugars into chocolate mixture; whisk in eggs 1 at a time. Whisk in vanilla, then flour, salt and remaining 3/4 cup chocolate chips.
  4. Divide batter among prepared muffin cups. Bake cupcakes until a tester inserted into the center comes out with moist crumbs attached, about 20 minutes. Transfer cupcakes to rack and cool completely.


  1. Put powdered sugar and next 3 ingredients in a medium bowl. Using an electric mixer, beat until mixture is smooth, adding whipping cream by teaspoonsful if frosting is too thick to spread.
  2. Spread frosting in swirls over the top of cupcakes. Sprinkle with chocolate shavings or chocolate sprinkles. (Can be made 1 day ahead. Store in a single layer in an airtight container at room temperature.) Makes 10-12 cupcakes.


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