Caitlin EllicoDark Chocolate WafflesBon Appétit - By Rick and Michael MastButtermilk brings slight tang and moisture to the batter, while olive oil offers fruity richness. Choose a mild-flavored (not too peppery) type of oil for these waffles. Step 1 Preheat oven to 250°. Whisk flour, cocoa powder, brown sugar, baking powder, baking soda, and salt in a large bowl. Make a …