*What does adding espresso to chocolate do?
There really isn't enough espresso in this recipe to change the flavor to all-out mocha, so why even bother adding it? Coffee and chocolate go together incredibly well, that's why. It's simply because coffee enhances the depth of rich, chocolatey perfection in this icing, taking it up a notch. You can leave it out if you're caffeine-averse, but we strongly feel that it adds just a little something extra.