Ingredients
For the Cupcakes:
8 tablespoons (1 stick) unsalted butter, cut into 4 pieces
2 ounces bittersweet chocolate, chopped
½ cup (1.5 ounces) Dutch-processed cocoa powder
¾ cup (3.75 ounces) all-purpose flour
½ teaspoon baking soda
¾ teaspoon baking powder
2 eggs
¾ cup (5.25 ounces) granulated sugar
1 teaspoon vanilla extract
½ teaspoon table salt
½ cup (4 ounces) sour cream
For the Peanut Butter Frosting:
1 cup confectioners' sugar
1 cup creamy peanut butter
5 tablespoons unsalted butter, at room temperature
¾ teaspoon vanilla extract
¼ teaspoon kosher salt
1/3 cup heavy cream
Preparation
