Ultimate Marble Cupcakes

Ultimate Marble Cupcakes Ingredients: CUPCAKES 1 and 2/3 cups (210g) all-purpose flour 1/2 teaspoon baking powder 1/4 teaspoon baking soda 1/2 teaspoon salt 1/2 cup (115g) unsalted butter, melted 1 cup (200g) granulated sugar 1 large egg, room temperature 1/4 cup (60g) yogurt* 3/4 cup + 1 Tablespoon (195ml) milk, divided* 2 teaspoons vanilla extract 1/4 cup (21g) unsweetened cocoa powder MILK CHOCOLATE FROSTING 1 and 3/4 cups (210g) confectioners' sugar 1/4 cup (21g) unsweetened cocoa powder 1/2 cup (115g) unsalted butter, softened to room temperature 2 Tablespoons (30ml) heavy cream or half-and-half* 1 teaspoon vanilla extract salt, to taste VANILLA FROSTING 1/2 cup (115g) unsalted butter, softened to room temperature 1 and 3/4 cups (210g) confectioners' sugar 2 Tablespoons (30ml) heavy cream or half-and-half* 1 teaspoon vanilla extract ...