It’s easy to assume waffles are a recent invention after cooking them (or having them cooked for you) on electric appliances your whole life. But waffle irons are far older than one might expect. All you need to make a waffle is metal, heat, and batter, and ancient Greeks had all three at their disposal. Ancient Greeks (and later, ancient Romans) used a pair of cooking irons (flat or patterned metal plates with long handles) over a fire to cook a batter of flour and either water or goat...