Here is your new favorite, ultra luscious, chocolate, cupcake and cake recipe! The batter is made with buttermilk, special dark cocoa, cake flour, eggs and vanilla that makes for a super chocolatey, moist and delcious cake and the icing should be illegal! The rich buttercream includes an egg yolk, semisweet chocolate and coffee for a superlative taste and creamy texture. I know you'll love this recipe, you can make a cake or any size cupcakes, see my notes for baking times.