Like every recipe, including the very simplest, this one has gone through a number of permutations. This variation includes espresso powder; it gives the chocolate flavor a boost while adding the merest aromatic hint of itself. For a mocha crinkle, increase the espresso powder to 1 tablespoon or more, to taste. For a peppermint twist, substitute 1/4 teaspoon peppermint oil for the vanilla.
Bake10 to 12 mins
Total2 hrs 40 mins