Tamagoyaki Japanese Rolled Omelette

In a medium bowl, gently whisk the eggs until just combined. Be careful not to incorporate too much air, as this can make the omelette bubbly. Add the dashi stock, mirin, soy sauce, and sugar to the egg mixture. Whisk until the sugar is dissolved and all ingredients are well incorporated, but still avoiding excessive foam. Strain the mixture through a fine-mesh sieve to remove any chalazae or bits of egg for a smoother texture.

Place a square or rectangular Tamagoyaki pan (or a small non-stick frying pan) over medium-low heat. Lightly oil the entire surface of the pan using a paper towel dipped in vegetable oil. Make sure there is just a thin, even layer of oil. You will re-oil the pan between layers.

Once the pan is hot (a drop of egg mixture should sizzle gently), pour about one-quarter to one-fifth of the egg mixture into the pan. Tilt the pan to spread the egg evenly into a thin layer. If any large bubbles form, gently pop them with a chopstick or fork.

As the egg layer begins to set but is still slightly wet on top, gently start rolling it from one end of the pan to the other using chopsticks or a spatula. Once rolled, push the formed omelette to one side of the pan, leaving about two-thirds of the pan empty.

Lightly re-oil the empty portion of the pan using the oiled paper towel. Pour another portion of the egg mixture into the pan, lifting the already rolled omelette slightly to allow the new egg mixture to flow underneath it and fill the entire pan. This ensures the layers adhere well.

As the new layer sets, begin rolling the existing omelette back over the fresh egg, continuing the rolling motion across the pan. Push the newly enlarged omelette to the side again. Repeat this process of oiling, pouring a new layer, and rolling until all the egg mixture is used up, forming a thick, multi-layered omelette.

Once the Tamagoyaki is complete, remove it from the pan. For a perfectly rectangular shape, you can immediately wrap it in a sushi bamboo mat (makisu) and gently press it for a few minutes. Let it cool slightly before slicing into 1-inch thick pieces. This allows the layers to set and prevents tearing.

Serve the Tamagoyaki warm or at room temperature. It is delicious on its own, as part of a Japanese breakfast, in a bento box, or as a side dish. Garnish with a sprinkle of chopped green onions or serve with a side of grated daikon radish if desired.