Sushi chef Hiroaki Sasaki, who provided the history of dashi-maki tamago (rolled thick omelet), gave me his recipe. This traditional restaurant favorite was a natural development in the sushi kitchen, where there was always leftover fish and shrimp. Puréed, these seafood scraps were mixed with eggs and then made into an egg cake, tamago-yaki, that has an oven-baked cake appearance and a smooth, light texture. You feel as if you are eating a moist and slightly dense pound ca