As if devil’s food cake weren't already temptation incarnate, we've cranked up the heat with a rich and melty ganache topping and a four-alarm-fire crown. All you need to fake the flames is sugar, water, a candy thermometer, and food coloring. Let the candy cool, and sink the hardened pieces in for a dessert that'll go down in a blaze of glory.
The cake, buttercream, and flames can all be made a day in advance and kept covered at room temperature. The buttercream can also be refrigerated for up to three days, or frozen for up to three months (bring to room temperature and beat again for a minute or two before using).