How-to Decorate Cakes
For a crumb-free finish, use an offset spatula to apply a very thin coat of frosting over the cake. Then pop it in the fridge for 20 minutes before covering with or piping on the remaining frosting.
For the nut edge, place strips of plastic wrap just under the edges of the frosted cake. Sprinkle chopped nuts on the wrap. Gently lift the wrap while pressing nuts into the frosting. Using a clean spatula to lift one side of the cake at a time, pull wrap out from underneath.
It's crucial to sift the cocoa powder to prevent tiny lumps in the frosting. which can clog the #45 petal pastry tip. Piping on the frosting in a zigzag motion creates a gorgeous ruffled effect.