Yellow Sheet Cake With Chocolate Frosting | Recipe Cart | Recipe Cart

Ingredients

• Nonstick cooking spray
• 3/4 cup/170 grams unsalted butter (1 1/2 sticks), at room temperature
• 1 1/4 cups/250 grams granulated sugar
• 2 large eggs plus 1 large egg yolk, at room temperature
• 1 tablespoon vanilla extract
• 1 1/2 cups/190 grams all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon fine sea salt
• 3/4 cup/180 milliliters whole milk
• 3/4 cup/170 grams unsalted butter, at room temperature
• 2 1/2 cups/310 grams confectioners’ sugar
• 1/2 cup/45 grams cocoa powder
• 1/2 cup/120 milliliters sour cream
• 2 ounces/55 grams bittersweet chocolate, melted and cooled
• 1 1/2 teaspoons vanilla extract
• Pinch of fine sea salt
• Sprinkles, for finishing (optional)