coconut cake recipe

Add the cake flour, baking powder, baking soda, and salt to a large bowl. Whisk the dry ingredients together until well blended. Set aside until needed. Add the butter and sugar to the bowl of a stand mixer fitted with a paddle attachment. Whip the butter and sugar together on medium-high speed until smooth and creamy (about 2 minutes). *Scrape down the sides and up the bottom of the bowl with a rubber spatula as needed. Add the egg whites to the butter mixture. Whip until well combined. *Scrape down the sides and up the bottom of the bowl with a rubber spatula as needed. *Butter and egg whites should be at room temperature. Save the egg yolks for another recipe.