Tamago sushi is a type of sushi that features a sweet, layered omelet known as tamagoyaki. This omelet is made by whisking eggs with sugar, soy sauce, and mirin, then cooking it in a rectangular pan to create a fluffy texture. The finished omelet is sliced and served atop a small mound of vinegared rice. Often enjoyed as a delicacy, Tamago sushi is popular in sushi restaurants and is considered a test of a chef's skill. It can be served on its own or as part of a sushi platter, showcasing the balance of flavors and textures in Japanese cuisine.