Frittata

Frittata is a traditional flat and round egg-based dish that's closer to a Spanish tortilla than to a French omelette. It's made with a combination of whisked eggs and additional ingredients such as prosciutto (crudo or cotto), grated cheese, or sautéed onions. The frittata should be completely set, yet moist. The eggs should be beaten lightly so that the air bubbles don't form. The egg mixture is traditionally cooked in butter or a mix of butter and oil. When the butter or oil begin to foam, the mixture is cooked slowly over low heat, usually in a heavy-bottomed frying pan. When it has set and the top is still runny, it's placed under the grill until the top sets, but it shouldn't be browned.