Gradually blend in the cocoa until smooth ... What other flavors can you add to chocolate buttercream frosting? Coffee can really make the chocolate buttercream frosting flavor pop.
Cream the butter and sugar, as above, also adding the cocoa powder ... The weather can have a big effect on your buttercream. In very humid conditions, you may need to add more icing sugar ...
Dutch-process cocoa is milder and dissolves more ... What other flavors can you add to chocolate buttercream frosting? Coffee ...