extract, beating on medium speed for another minute. with the mixer on low speed, add in half of the dry ingredients. pour in the milk. add in the other half of the dry ingredients and mix them on medium speed until the batter is combined. stir in 1 cup of coconut. use a large spatula to gently stir in the sprinkles.
divide the batter evenly between the two cake pans. bake until the tops are set, about 25 to 30 minutes. let cool completely, then gently turn the cakes out on a piece of parchment paper, using a knife to release the edges if needed. let cool completely before frosting.
take one 