CHOCOLATE CAKE
Preheat oven to 350°F.
Line the bottom of two 8-inch round cake pans (straight edge) with parchment rounds. Spray the sides of the pans with baking spray
Whisk the Chocolate Birthday Cake dry ingredients together in a large bowl.
In a separate bowl, mix the buttermilk, vegetable oil, eggs, and vanilla.
Gradually add the dry ingredients into the wet ingredients mixing as you go. Next, slowly add the coffee continuing to mix until smooth. The Best Chocolate Birthday Cake batter will be thin and glossy.
Divide the Chocolate Birthday Cake Batter between the two prepared pans evenly. Bake for 35 minutes or until a toothpick inserted into the center of the cake comes out clean. Cool cakes on a rack for 10 minutes.
CHOCOLATE FROSTING
Melt the chocolate in a double boiler or the microwave. Stir the chocolate until smooth. Set aside.
In a mixing bowl add the butter and beat at medium speed until smooth and pale. Mix in the vanilla. Gradually add the powdered sugar and salt until smooth.
Using a rubber spatula, fold the sour cream into the cool melted chocolate.
Frost the cake! Don't Forget the sprinkles!