Step by step

Method

4 steps

1. 1

   Hard-boil 4 eggs: cover with cold water, bring to a boil, then simmer 9–10 minutes. Ice-bath 5 minutes, peel, and mash in a bowl with a fork until mostly smooth with a few small chunks — Japanese egg salad is finer than deli style.

2. 2

   Fold in 3–4 tablespoons Japanese mayo (or regular mayo plus a tiny splash of rice vinegar), a pinch of sugar, salt, and white pepper. Taste; it should be creamy, gently sweet, and eggy. Chill 10 minutes if you have time so it firms for spreading.

3. 3

   Trim the crusts off soft white sandwich bread if you want the convenience-store look. Butter or mayo the slices lightly so the filling doesn't soak through. Pile on a thick layer of egg salad and top with the second slice.

4. 4

   Press gently, wrap in plastic for 5–10 minutes if you want clean edges, then slice in half. The filling should peek out in a neat yellow band — soft bread, rich egg, no dry bites.