Gyeran Mari (Korean Rolled Omelette)

Heat is everything: Most failed rolls are cooked too hot. On high or even medium heat the bottom browns and turns rubbery before the top sets, and dry layers will not stick to each other, so the roll splits into separate sheets when you slice it. Keep the burner at medium-low or low and be ready to lift the pan off the heat for a few seconds whenever the egg starts to bubble. The goal is a pale yellow outside with only a few golden spots. A slow first batch is normal; the second one is always easier.

If a layer tears or the roll looks messy: Keep going. Each new layer of egg covers the one before, so tears in the first layer are hidden inside the finished roll. If a hole appears in a later layer, pour a spoonful of the remaining egg over it before rolling. If the egg runs out before the roll looks thick enough, beat one more egg with a pinch of salt and add it as an extra layer. The roll will still be soft when it comes out of the pan, so do not judge the shape until after the 5-minute rest.

Using a round pan: A round pan makes the layers uneven at the ends, which is fine. Pour each layer, let it cover the whole bottom, and roll from the far side as usual; the rounded ends simply fold in. If you prefer a tidier roll, tilt the pan so the egg covers only a strip about as wide as a rectangular pan, roughly 6 inches (15 cm), and roll within that strip. Squaring the roll with the spatula in the pan and resting it in a mat or foil does most of the shaping.

Why strain and why so little salt: Straining removes the chalaza, the stringy white bits attached to the yolk, and gives a smoother, more even color. It is optional. The salt is kept light because the omelette is usually eaten with rice and other salty side dishes; if you plan to eat it on its own, add another small pinch. Some Korean cooks season the eggs with a little fish sauce or a splash of anchovy broth instead of some of the salt, which adds a savory depth.

Serving ideas: As a banchan, set it out with rice, a bowl of soup or stew such as Kimchi Jjigae or Doenjang Jjigae, and other small dishes such as Korean Cucumber Salad and Easy Kimchi. Its mild flavor balances spicy dishes like Tteokbokki or Jeyuk Bokkeum. Packed into a lunchbox with rice, it holds its shape well and tastes good at room temperature. Ketchup on the side is a very common way to eat it in Korea, especially for children. If you have made our Kimbap recipe, the egg strips there start the same way, as egg cooked gently in a thin layer, just cut into strips instead of rolled.

Storage: Let the slices cool, then refrigerate them in a covered container for up to 3 days. Eat them cold, at room temperature or warmed for 10 to 20 seconds in the microwave; longer heating makes the egg rubbery. For a packed lunch, keep it chilled until shortly before eating, and do not leave it out for more than 2 hours (1 hour on a very hot day above 90°F/32°C). Freezing is not recommended, because the texture turns spongy and watery.

Variations: For gim gyeran mari (seaweed rolled omelette), lay a sheet of gim (roasted seaweed sheet, sold as nori in many stores) over the first layer of egg while the top is still wet, trim it to fit the pan, and roll it up inside to get a dark spiral in every slice. For a cheese version, lay a slice or two of mild melting cheese, such as American or mozzarella, on the second layer before rolling. You can also swap in other finely chopped vegetables, such as zucchini, spinach or mushrooms, or add a few tablespoons of finely chopped ham. Squeeze or pat wet vegetables dry first and keep the total add-ins to about 1/2 cup (about 60 g), because too many make the layers watery and hard to roll.