Classic Japanese Egg Sandwich (Tamago Sando)
This creamy and comforting Japanese egg sandwich—known as Tamago Sando—is a minimalist masterpiece. Made with soft shokupan (Japanese milk bread), smooth mashed boiled eggs, and rich Kewpie mayo, it delivers an incredibly silky texture and balanced flavor in every bite. Perfect for breakfast, brunch, or an elegant snack, this sandwich has taken the world by storm for good reason.
Equipment
- Medium saucepan (for boiling eggs)
- Mixing bowl
- Fork or potato masher (for mashing eggs)
- Spoon or spatula (for mixing and spreading)
- Bread knife or serrated knife (for clean slicing)
- Cutting board
- Optional: Fine mesh sieve (for extra-smooth egg texture)
- Optional: Butter knife (if buttering bread)
Ingredients
- 4 large eggs hard-boiled
- 3 tbsp Kewpie mayonnaise
- 1/4 tsp salt or to taste
- 1/4 tsp sugar optional
- 4 slices shokupan Japanese milk bread, crusts removed
- 1 tsp butter optional, softened for spreading
Instructions
- Boil the Eggs: Place eggs in a saucepan, cover with water, and bring to a boil. Reduce heat and simmer for 10 minutes. Transfer immediately to an ice bath to cool completely.
- Peel and Mash: Peel the cooled eggs and mash them in a bowl with a fork until smooth and lump-free.
- Mix the Filling: Add Kewpie mayo, salt, and sugar (if using) to the mashed eggs. Stir until creamy and fully combined.
- Prepare the Bread: Remove crusts from the shokupan slices. Lightly butter one side of each slice if desired.
- Assemble the Sandwich: Spread the egg mixture evenly onto two slices of bread. Top with the remaining slices. Press gently to seal.
- Slice and Serve: Cut the sandwiches into halves or neat quarters. Serve chilled or at room temperature.
Notes
For an ultra-smooth texture, mash the eggs through a sieve or with the back of a spoon.
To elevate the recipe, add a soft-boiled egg in the center or a touch of truffle oil.
Chill the sandwich before slicing for cleaner edges and better flavor integration.
Pairs beautifully with iced matcha, green tea, or a simple miso soup.