Egg Sando (Japanese Creamy Egg Sandwich)
ایگ سینڈو (جاپانی کریمی انڈے کا سینڈوچ)
The egg (tamago sando) is the cult sandwich of Japanese convenience stores: soft white bread and an extra-creamy egg filling that's richer, smoother and slightly sweeter than an ordinary egg sandwich. The trick is to mash the yolks with mayonnaise and a splash of milk into a silky cream, then fold in chopped whites. It costs very little, needs no cooking skill beyond boiling eggs, and is one of the best things you can put in a lunch box.
- ⏱ Total: 20 min
- Prep: 10 min
- Cook: 10 min
- Easy
- Serves 2
Method
Tap a step when it is done.
Lower the eggs gently into a of boiling water and boil for 10 minutes (and the extra egg for 6½ minutes, for a jammy yolk). Move them straight into cold water for 5 minutes, then peel.
Separate the yolks from the whites of the 4 hard-boiled eggs. In a bowl, mash the yolks with the mayonnaise, milk, sugar, salt, pepper and mustard into a smooth, thick cream.
Finely chop the whites and fold them into the yolk cream with the chives. Taste and adjust the salt.
Butter the bread. Spread a thick layer of egg filling on two slices (for the jammy-egg version, press the halved soft egg into the centre, cut side down, and fill around it), top with the other slices and press gently.
Trim the crusts and cut each sandwich in half (or into 3 fingers). For the jammy version, cut straight through the middle to show the yolk.
Kitchen notes
Japanese mayonnaise (Kewpie) is made with yolks and rice vinegar and is richer; ordinary mayo with the pinch of sugar and splash of milk gets close.
For school lunch boxes, use hard-boiled eggs only (no jammy centre) and pack with an ice pack in hot weather.
Desi twist: add a pinch of chaat masala, a little chopped green chili and fresh coriander to the filling.
A convenience-store legend
In Japan, the egg sando is a staple of every konbini (convenience store) and a favourite breakfast and snack. Visiting chefs and food writers praised it so much that it became famous worldwide, and cafés now serve upmarket versions with a whole jammy egg in the middle. At home, it’s one of the cheapest and quickest sandwiches you can make.
The silky filling
The secret is texture. Instead of mashing whole eggs with mayo, mash the yolks first with mayonnaise, a splash of milk and a pinch of sugar until completely smooth and creamy. Then fold in finely chopped whites for little soft pieces. The result is richer and silkier than a typical egg mayo, and holds together neatly when you cut the sandwich.
Soft bread, no crusts
Soft milk bread or good white sandwich bread gives the pillowy texture. A thin layer of butter keeps the filling from soaking in. Trimming the crusts is traditional and gives clean edges, and the crusts can be toasted for croutons or breadcrumbs.
For breakfast and lunch boxes
It’s a great school-morning breakfast or lunch-box sandwich. See our school lunch box collection for more ideas. For a meaty Japanese-style sandwich, try the chicken katsu sando; for a desi breakfast, the desi omelette.
Questions people ask
How long does the filling keep?
Up to 2 days in a covered box in the fridge. Assemble the sandwiches on the day you eat them so the bread stays soft, not soggy.
Why separate the yolks?
Mashing the yolks alone with mayo makes a smooth, rich cream. Mashing everything together gives a lumpier, more ordinary egg mayo.
Nutrition (estimate, per serving)
- Calories
- 470
- Protein
- 18 g
- Fat
- 28 g
- Carbs
- 36 g
