This Thai-style omelet is traditionally served over rice. It consists of eggs, fish sauce, a splash of lemon juice or vinegar, and optionally some soy sauce, cornstarch, or rice flour. This mixture is cooked in vegetable oil until slightly brown. Unlike regular omelets, this Thai version is not folded, but simply flipped. Khai chiao may be served with various toppings, while chili sauce and cucumbers are traditionally served on the side.