Japanese Tamago Sando (Egg Salad Sandwich)

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Japanese Tamago Sando (Egg Salad Sandwich)

An authentic, convenience-store-style Japanese Egg Salad Sandwich (Tamago Sando). Made with fluffy Shokupan (milk bread), rich Kewpie mayonnaise, and perfectly boiled eggs, this sandwich is incredibly creamy, soft, and comforting.

Prep Time15

Cook Time10

Resting Time10

Total Time35

Course: Breakfast, Lunch, Snack

Cuisine: Japanese

Keyword: convenience store egg sandwich, Japanese Egg Salad Sandwich, Tamago Sando

Servings: people

Calories: 510kcal

Ingredients

For the Egg Salad:

5 Large Eggs preferably pasture-raised or farm-fresh
4 tbsp Kewpie Mayonnaise Japanese mayo
Salt and Black Pepper

For the Sandwich Assembly:

4 slices Shokupan Japanese milk bread
1 tbsp Whole Grain Mustard
1 tbsp Butter room temperature

Instructions

Boil the Eggs: Bring a medium pot of water to a rolling boil. Carefully lower the eggs into the water using a slotted spoon. Reduce the heat slightly to a gentle boil and cook for exactly 10 minutes.
Ice Bath & Peel: While the eggs boil, prepare a bowl filled with cold water and ice cubes. Once the timer goes off, immediately transfer the eggs to the ice bath. Let them cool completely for 5–10 minutes, then gently peel them under running water.
Prep the Eggs: Cut the peeled eggs in half. Separate the yolks into a large mixing bowl and place the whites on a cutting board.
Finely dice the egg whites into small, uniform pieces. Use a fork to mash the egg yolks in the bowl until smooth.
Mix the Filling: Add the diced egg whites, Kewpie mayonnaise, salt, and black pepper to the bowl with the mashed yolks. Stir thoroughly until the mixture is uniform and ultra-creamy. Taste and adjust seasoning if necessary.
Assemble: Lay out the 4 slices of Shokupan. Lightly spread the room-temperature butter and grain mustard evenly across one side of the bread slices. Divide the egg salad mixture evenly onto two of the slices, then top with the remaining bread.
Rest & Slice: Wrap each assembled sandwich tightly in plastic wrap. Place them in the refrigerator to rest for 5 to 10 minutes (this helps the sandwich hold its shape when cutting).
Remove the wrap, slice off the crusts if desired, and cut in half. Serve immediately!

Notes

The Secret to No Soggy Bread: Never skip the butter layer! The fat in the butter acts as a waterproof barrier that keeps the moisture from the egg salad from soaking into the delicate milk bread.
Egg Quality Matters: Because this recipe relies on very few ingredients, use the highest quality eggs you can find. Eggs with rich, orange yolks will give your sandwich that signature vibrant look and deep flavor.
Substitutions: If you cannot find Shokupan, use a thick-cut, high-quality brioche or soft white sandwich bread. If Kewpie mayo isn't available, use regular mayonnaise mixed with a small pinch of sugar and a splash of rice vinegar.

Nutrition