*To create the swirled frosting effect, place chilled cake with thin layer of frosting on a piece of wax paper on a cake turntable, and add remaining frosting to create a fairly smooth finish with a medium palette knife (straight, not offset). Then, with your dominant hand, hold palette knife with a medium-firm pressure at about a 45° angle starting at bottom of cake, and with your other hand slowly spin turntable while keeping your palette knife against cake at at all times, then gradually directing the palette knife upwards until you get to the top. Finish with same technique on top. If you aren't happy with your attempt, this frosting is so satiny, that you can smooth it over and try again.
**I always build my cakes on thin cake boards to make for easy lifting and transferring.
[malted chocolate frosting adapted from Williams-Sonoma]