Japanese Tamagoyaki Sando (Omelet Sandwich)

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Japanese Tamagoyaki Sando (Omelet Sandwich)

A warm, comforting Kyoto kissaten (café) classic featuring a sweet and savory, velvety dashi omelet sandwiched between thick, cloud-like slices of Japanese milk bread (shokupan).

Prep Time10

Cook Time10

Resting Time5

Total Time25

Course: Breakfast, Lunch, Snack

Cuisine: Japanese

Keyword: Japanese Egg Sandwich,, Kissaten Recipe, Omelet Sandwich, tamagoyaki sando

Servings: sandwich

Calories: 640kcal

Ingredients

For the Omelet:

3 large eggs
3 tbsp milk
½ tsp instant dashi powder
1 tsp soy sauce
1 tsp sugar
2 tbsp vegetable oil for frying

For Assembly:

2 slices Shokupan Japanese milk bread, sliced thick
1 tbsp unsalted butter room temperature
1 tbsp Japanese mayonnaise

Instructions

Mix the Egg Base: In a small bowl, stir together the milk, instant dashi powder, soy sauce, and sugar until the granules are completely dissolved. Add the eggs and mix gently using chopsticks or a fork. Use a cutting motion to combine without whipping excess air bubbles into the mixture.
Heat the Pan: Place a tamagoyaki pan (or a small circular non-stick skillet) over medium heat. Add the vegetable oil and use a crumpled paper towel to wipe away the excess, leaving a thin, glossy coating on the surface.
Scramble and Steam: Once hot, pour in the entire egg mixture. Immediately begin stirring the cooking egg from the outer edges inward to form soft curds. When the egg is roughly 70% cooked and still glossy/wet on top, remove the pan from the heat. Cover tightly with a lid or aluminum foil and let it steam for 1 minute.
Fold and Set: Remove the cover and fold the omelet cleanly in half to form a thick rectangle.
Cover again with the lid or foil, turn off the heat, and let it sit for 3 minutes to finish cooking through.
Shape the Omelet: Transfer the warm omelet onto a sheet of paper towel. Gently wrap and pat it to shape the edges so they evenly match the size of your bread slices.
Assemble the Sando: Spread a smooth layer of room-temperature butter across one slice of shokupan, and a layer of Japanese mayonnaise across the other. Place the warm omelet between the slices.
Rest and Slice: Wrap the assembled sandwich snugly in plastic wrap and let it rest on the counter for 5 minutes.
Use a sharp serrated knife to trim away the crusts if desired, then slice the sandwich cleanly down the middle into halves or thirds. Serve warm.

Notes

No Tamagoyaki Pan? A standard small, round non-stick skillet works perfectly. Simply use your spatula to fold the outer left and right edges of the egg inward to form a square shape before folding it in half.
Bubble Prevention: Keeping the egg smooth and bubble-free is the secret to a silky, kissaten-style texture. Don't use a wire whisk—stick to chopsticks or a fork kept low in the bowl.
Why the Rest Step Matters: Wrapping the sando in plastic wrap molds the soft bread to the warm omelet, ensuring it doesn't slide apart or separate when sliced or eaten.

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