Funfetti birthday Cake
Ingredients For Cake: 3 cups cake flour 2 1/2 cups granulated sugar 1 tablespoon baking powder 1 teaspoon salt 1 1/2 cups (3 sticks) unsalted butter, softened and cut into cubes 1 1/4 cup whole buttermilk, divided 5 large eggs 2 teaspoons vanilla extract 1 cup confetti quin sprinkles For Frosting 2 cups (4…