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Japanese Egg Sando (Japanese 7-Eleven Egg Sandwich)

Name: Japanese Egg Sando (Japanese 7-Eleven Egg Sandwich)
Prep time: 15 min
Cook time: 10 min
Total time: 25 min
Yield: About 3 sandwiches
Cuisine: Japanese
Ingredients: 6 slices Japanese milk bread (shokupan), soft; Asian market or our milk-bread recipe; 28 g / 2 tbsp unsalted butter, softened; 250 g / 5 large eggs; 5 g / 1 tsp rice vinegar or white vinegar, optional, in the boiling water; 3 tbsp mayonnaise, Kewpie preferred; 14.2 g / 1 tbsp milk; 3 g / 1/2 tsp table salt; 0.6 g / 1/4 tsp black pepper; 2.1 g / 1/2 tsp granulated sugar, optional

Japanese Egg Sando (Japanese 7-Eleven Egg Sandwich): Creamy Kewpie egg salad tucked into soft shokupan — the classic Japanese convenience-store sandwich, homemade. — AI-generated illustration

Konbini comfort food: soft bread, Kewpie yolks, and zero oven drama.

Creamy Kewpie egg salad tucked into soft shokupan — the classic Japanese convenience-store sandwich, homemade.

Makes: About 3 sandwiches · Pan: Medium saucepan · Oven: Stovetop (for boiling eggs) · Cuisine: Japanese

⚖ Scale this recipe Print

Ingredients

Volume	Grams
Bread
6 slices Japanese milk bread (shokupan), soft; Asian market or our milk-bread recipe	—
2 tbsp unsalted butter, softened	28 g
Egg salad
5 large eggs	250 g
1 tsp rice vinegar or white vinegar, optional, in the boiling water	5 g
3 tbsp mayonnaise, Kewpie preferred	—
1 tbsp milk	14.2 g
1/2 tsp table salt	3 g
1/4 tsp black pepper	0.6 g
1/2 tsp granulated sugar, optional	2.1 g

Gram weights use the King Arthur Baking ingredient weight chart; “—” means the ingredient isn’t on the chart, so measure it by volume or count. Measure flour by spooning it into the cup and leveling, or better, weigh it.

Method

Bring a saucepan of water to a boil. Add the vinegar if using, lower in the eggs, and boil 10 minutes. Transfer to an ice bath for 5 minutes, then peel.
Halve the eggs and pop the yolks into a bowl. Mince the whites very fine and set aside.
Mash the yolks with the mayonnaise, milk, salt, pepper and optional sugar until smooth and creamy. Fold in the minced whites.
Butter one side of each bread slice (the butter keeps the filling from soaking the crumb). Mound the egg salad toward the center of 3 slices, top with the remaining slices, butter-side in, and gently press.
Trim the crusts if you want the konbini look. Chill 10–15 minutes so the filling sets, then cut each sandwich on the diagonal and serve.

Tips

Don't want to bake? Pick up shokupan (Japanese milk bread) at any Asian market — or make our Japanese milk bread at /recipes/milk-bread/.
Eggs a week or two old peel more cleanly than very fresh ones.
Kewpie is richer and a little sweeter than standard mayo; if you use regular mayo, keep the optional sugar.
A short chill before cutting keeps the salad from spilling out the sides.

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