Skinnymixer’s Tamago Sando filling (Japanese Egg Sandwich Filling) features in the Snacks & Share section of the cookbook SkinnyAsia 2.

When the kids and I visited Japan, we loved stopping at the convenience stores to grab their famous egg sandwiches.

Simple as they might look, there’s something so good about that combination of soft white bread and rich, creamy egg filling. So, of course, we had to create our own version for SkinnyAsia 2.

Our Tamago Sando Filling combines eggs with Japanese mayonnaise, Dijon mustard, a touch of sugar and white pepper for a creamy filling that’s generously piled between slices of bread.

And if you want to take it to another level, make our Hokkaido Milk Bread too. The two recipes were made for each other.

What is a Tamago Sando?

Tamago Sando is a Japanese egg sandwich. Tamago means egg, while sando is short for sandwich.

You’ll find versions sold in convenience stores throughout Japan, including the famous egg sandwiches from stores such as 7-Eleven, FamilyMart and Lawson.

What makes them so good is their simplicity: soft, fluffy white bread filled generously with creamy seasoned egg.

What ingredients you will need

The complete recipe, quantities and methods are in SkinnyAsia 2, but the filling only needs a handful of ingredients:

Eggs
Japanese mayonnaise, such as Kewpie, or our Creamy Japanese Mayo
Dijon mustard
A touch of sugar
Salt
Ground white pepper

Then all you need is plenty of soft bread.

The Secret to a Creamy Egg Filling

Rather than simply chopping everything together, we separate the cooked egg yolks from the whites.

The yolks are mixed with the mayonnaise, mustard and seasonings first, creating a rich, creamy base.

Then the egg whites are chopped and folded through until the filling reaches your preferred texture.

You get creaminess from the yolks and mayo while still keeping plenty of texture from the egg whites.

Don’t Skip the Ice Bath

As soon as the eggs have finished cooking, transfer them straight into an ice bath for 5 minutes.

This stops the cooking process and cools the eggs down ready for peeling and turning into your Tamago Sando filling.

Make it with Hokkaido Milk Bread

You can absolutely make your Tamago Sando with fresh, soft white bread.

But if you’re going all in, pair it with the Hokkaido Milk Bread from SkinnyAsia 2.

Our Hokkaido Milk Bread uses tangzhong to create its signature soft and pillowy texture. Cut it into thick slices, lightly butter the bread and add a very generous amount of Tamago Sando Filling.

You can even remove the crusts for that classic Japanese-style presentation.

Dietary & Recipe Variations

LOW CARB
Omit the sugar, use compliant mayonnaise and serve with low-carb bread or in lettuce leaves.

SUPER SKINNY
Replace half of the mayonnaise with Greek yoghurt.

PALEO
Use compliant mayonnaise.

HALVED / DOUBLED
The recipe can be halved or doubled, with specific Thermo cooker instructions included in SkinnyAsia 2.

How to Serve Tamago Sando

Lightly butter thick slices of Hokkaido Milk Bread or fresh white bread and don’t be shy with the filling.

Pile the creamy egg mixture generously onto the bread, sandwich together and cut into halves.

For the full Japanese convenience-store experience, trim off the crusts if you like.

Get the Recipe

The complete Tamago Sando Filling recipe, including Thermo cooker and conventional methods, serving suggestions and dietary variations, is available in SkinnyAsia 2.

From the Testing Team

Susan R. – Very tasty! I’m loving all the white pepper zings in these recipes. I used 800g eggs and cooked as per recipe. Still a nice creamy texture.
Leia S. – Very yummy . Gluten free sandwich ready for mr 14 when he walks in the door. Made hubby a sandwich he’s working out the back he smashed it. Super easy & quick to make.
Michelle R. – Amazing! Cooked eggs for 13 min, all were perfect and peeled beautifully. Japan has been on my bucket list purely to try this so thanks for saving me $10k
Amanda E. – OMFG!! Delicious!!! Friends had told us they ate these sangas every morning when in Japan, now I know why!! I don’t even want to wait for the sandwich! Middle Miss just tasted it and basically demanded it on her sandwich for tomorrow!! I’m hoping Teen kiss got my message to grab bread on her way home! This is so good!!
Kylie W. – I love a Japanese egg sandwich, but mega expensive here. Now I can have them whenever I want, the flavour of this filling is bang on, eggs with a nice zing.

Some other Thermomix Sandwich Filling recipes you might love:

Want to know more about SkinnyAsia 2 cookbook?

SkinnyAsia 2 is a collection of Thermomix & Conventional cooking recipes. All of our cookbooks have a strong focus on Dairy-free, Gluten-free, Nut-free, Egg Free, Low Carb, Paleo, Vegetarian and Low FODMAP.