Chocolate Buttercream Icing Recipe Get ingredients: 227 g (1 cup) butter (unsalted, room temperature, 65-70° F / 18-21° C) 31 g (1/8 cup) milk 43 g (1/2 cup) cocoa powder 385 g (3 1/2 cups) icing sugar 3 g (1/2 tsp) salt 8 g (2 tsp) vanilla extract (pure) stand mixer sifter spatula Attach the whisk to the stand mixer. Add to stand mixer bowl: 227 g (1 cup) butter (chopped into about 8 pieces) Mix on high speed until smooth. Slowly sift into stand mixer bowl: 385 g (3 1/2 cups) icing sugar 43 g (1/2 cup) cocoa powder Mix on low speed until combined. Add to stand mixer bowl: 8 g (2 tsp) vanilla extract 3 g (1/2 tsp) salt 31 g (1/8 cup) milk Mix on medium speed (about 3 minutes). If it's not stiff enough, add more icing sugar. If it's too thick, add more milk. Ice the cake.