Black-and-White Cupcakes Recipe

Ingredients

• 1 3/4 cups (238 grams) all-purpose flour
• 2 teaspoons baking powder
• 1/4 teaspoon baking soda
• 1/4 teaspoon fine sea salt
• 10 tablespoons (133 grams) unsalted butter, at room temperature
• 1 cup (200 grams) sugar
• 3 large eggs
• 1 large yolk
• 2 teaspoons pure vanilla extract
• 3/4 cup (180 milliliters) buttermilk, shaken
• 1 cup (170 grams) mini chocolate chips
• 9 ounces (255 grams) semisweet or bittersweet chocolate, finely chopped
• 3 tablespoons confectioner’s sugar, sifted
• 6 tablespoons (85 grams) cold unsalted butter
• Sprinkles, optional