Sam Stern's Chilli-Orange Chocolate Cake - and one for which I already had all the ingredients. The only slight change from the recipe is that I use all the zest from the orange, and a second tablespoon of orange juice instead of rum. I don't add the marmalade glaze and use my own frosting recipe too.
As I've said before, this cake is near perfection - a moist close texture, but not too dense, and just the right balance of flavours. The chilli is evident, but not overwhelming. I wouldn't want to change a thing about it.
After eating it, daughter wondered if a Tequila, Lime and Chilli version would work, as she's a big fan of Montezuma's Revenge Truffles, flavoured with those three ingredients.