The most extraordinary moist Homemade Chocolate Cake with Chocolate Frosting made by preheating oven to 350°F greasing and lining three 8-inch pans browning 3/4 cup butter in light-colored saucepan over medium heat stirring constantly until most beautifully golden brown and nutty 5 to 7 minutes pouring immediately into heat-safe bowl cooling to room temperature whisking 2 cups flour 2 cups sugar 3/4 cup cocoa 2 tsp baking powder 1 1/2 tsp baking soda and 1 tsp salt adding cooled brown butter 2 room temperature eggs 1 cup room temperature buttermilk and 2 tsp vanilla mixing combined carefully stirring in 1 cup hot brewed coffee batter will be thin dividing between three pans baking 22 to 25 minutes until toothpick shows few moist crumbs cooling 10 minutes then on racks then beating 1 1/2 cups room temperature butter 3 minutes pale and fluffy adding 1 cup cocoa beaten incorporated adding 5 to 6 cups sifted powdered sugar alternating with 1/2 cup cream adding vanilla and salt beating medium-high 3 minutes fudgy assembling three layers crumb coating refrigerating 20 minutes applying final frosting. A completely perfect brown butter buttermilk three-layer chocolate birthday cake recipe.