Name: Peanut Butter Chocolate Cupcakes
Ingredients: 1 cup confectioners’ sugar; 3/4 cup creamy peanut butter; 4 tbsp. unsalted butter, at room temperature; 1/2 tsp. vanilla extract; 1 2/3 cups all-purpose flour; 3/4 cup unsweetened cocoa powder; 1 tsp. baking soda; 1/2 tsp. salt; 1 cup sour cream; 2 tbsp. milk; 1 tsp. vanilla extract; 8 tbsp. unsalted butter, at room temperature; 1 1/2 cups sugar; 2 large eggs; 1 cup creamy peanut butter; 8 tablespoons (1 stick) butter, at room temperature; 2 cups confectioners’ sugar, sifted; 3 to 4 tablespoons milk; 2 teaspoons pure vanilla extract

Ingredients

For the filling

1 cup confectioners’ sugar
3/4 cup creamy peanut butter
4 tbsp. unsalted butter, at room temperature
1/2 tsp. vanilla extract

For the cake

1 2/3 cups all-purpose flour
3/4 cup unsweetened cocoa powder
1 tsp. baking soda
1/2 tsp. salt
1 cup sour cream
2 tbsp. milk
1 tsp. vanilla extract
8 tbsp. unsalted butter, at room temperature
1 1/2 cups sugar
2 large eggs

For the peanut butter frosting

1 cup creamy peanut butter
8 tablespoons (1 stick) butter, at room temperature
2 cups confectioners’ sugar, sifted
3 to 4 tablespoons milk
2 teaspoons pure vanilla extract

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Instructions

Preheat oven to 350 F. Line a muffin tin with 12 cupcake liners.

To make the filling

Combine the confectioners’ sugar, peanut butter, butter and vanilla extract in a bowl. Beat with an electric mixer on medium speed until well combined. Roll the mixture into 1-inch balls (at least 24) and set aside on a baking sheet.

To make the cake

Combine the flour, cocoa powder, baking soda and salt in a medium bowl; whisk together and set aside. In a liquid measuring cup, stir together the sour cream, milk and vanilla extract. In the bowl of an electric mixer fitted with the paddle attachment (I used a hand mixer), combine the butter and sugar, and beat on medium-high speed until light and fluffy, about 2 minutes. Beat in the eggs one at a time, scraping down the bowl as needed. With the mixer on low speed, alternately add the dry ingredients and the sour cream mixture, beginning and ending with the dry ingredients. Mix just until incorporated.
Spoon a tablespoon or two of batter into the bottom of each cupcake liner. Place a ball of the peanut butter filling in each cupcake well and top with the remaining batter so that all the cups are filled. Bake for 18-22 minutes, or until a toothpick inserted in the center comes out clean. Allow to cool in the pan for 5-10 minutes, then transfer to a wire rack to cool completely. When the cupcakes are completely cool, top with peanut butter icing.

For peanut butter frosting

Place the peanut butter and butter in a large mixing bowl. Blend with an electric mixer on low speed until fluffy, 30 seconds. Stop the machine. Add the confectioners’ sugar, 3 tablespoons milk, and the vanilla. Blend with the mixer on low speed until the sugar is well combined, 1 minute. Increase the speed to medium and beat until the frosting lightens and is fluffy, 1 minute more. Blend in up to 1 tablespoon milk if the frosting seems too stiff.