The Japanese egg sandwich, or tamago sando, is a delightful and simple dish that has become a staple in Japanese convenience stores. This sandwich features a creamy and flavorful egg salad filling, nestled between soft, crustless white bread. It's perfect for a quick lunch, snack, or even a light breakfast.
Most of the ingredients for this recipe are common household items, but you might need to check your pantry for dijon mustard. This tangy mustard adds a subtle kick to the egg mixture, enhancing the overall flavor. If you don't have it on hand, you can easily find it in the condiment aisle of your local supermarket.
Ingredients for Japanese Egg Sandwich (Tamago Sando)
Eggs: The main ingredient, providing protein and a creamy texture when mashed.
Mayonnaise: Adds creaminess and richness to the egg mixture.
Dijon mustard: Provides a tangy flavor that complements the eggs and mayonnaise.
White bread: Soft and crustless, it serves as the perfect vessel for the egg salad.
Salt: Enhances the overall flavor of the egg mixture.
Pepper: Adds a hint of spice and depth to the sandwich.
Technique Tip for This Recipe
For a creamier texture, consider using Japanese mayonnaise instead of regular mayonnaise. Japanese mayonnaise, such as Kewpie, has a richer flavor and smoother consistency, which enhances the overall taste of the egg mixture. Additionally, when boiling the eggs, start with cold water and bring it to a gentle boil to prevent the shells from cracking and to ensure even cooking.
Suggested Side Dishes
Alternative Ingredients
large eggs - Substitute with tofu: Tofu can be crumbled and seasoned to mimic the texture and flavor of scrambled eggs, making it a good plant-based alternative.
mayonnaise - Substitute with Greek yogurt: Greek yogurt provides a similar creamy texture and tangy flavor while being lower in fat and calories.
dijon mustard - Substitute with yellow mustard: Yellow mustard can be used for a milder flavor, though it lacks the complexity of dijon.
white bread - Substitute with whole wheat bread: Whole wheat bread offers more fiber and nutrients, making it a healthier choice.
salt - Substitute with soy sauce: Soy sauce can add a similar salty flavor along with a bit of umami, enhancing the overall taste.
pepper - Substitute with paprika: Paprika can provide a mild heat and a slightly smoky flavor, adding a different dimension to the sandwich.
Alternative Recipes Similar to This Dish
How To Store / Freeze This Recipe
- Allow the egg mixture to cool completely before storing. This prevents condensation and sogginess.
- Wrap each sandwich individually in plastic wrap or parchment paper to maintain freshness and prevent drying out.
- Place the wrapped sandwiches in an airtight container or a resealable plastic bag. This helps to keep them fresh and avoid any unwanted odors from the fridge.
- Store the sandwiches in the refrigerator for up to 2 days. Beyond this, the texture and flavor may start to degrade.
- For freezing, wrap each sandwich tightly in plastic wrap, then place them in a freezer-safe bag or container. This double layer of protection helps prevent freezer burn.
- Label the container with the date to keep track of freshness. Frozen sandwiches can be stored for up to 1 month.
- To thaw, transfer the sandwiches from the freezer to the refrigerator and let them thaw overnight. This gradual thawing helps maintain the texture.
- Avoid microwaving the sandwiches to thaw, as this can make the bread soggy and the egg mixture rubbery.
- If you prefer a warm sandwich, lightly toast the bread in a toaster oven after thawing. This can help revive the texture and add a pleasant crunch.
How To Reheat Leftovers
Microwave Method:
- Place the sandwich on a microwave-safe plate.
- Cover it with a damp paper towel to retain moisture.
- Microwave on medium power for 30 seconds to 1 minute, checking halfway through to ensure it doesn't overheat.
Oven Method:
- Preheat your oven to 350°F (175°C).
- Wrap the sandwich in aluminum foil to prevent it from drying out.
- Place it on a baking sheet and heat for about 10 minutes, or until warmed through.
Stovetop Method:
- Heat a non-stick skillet over medium-low heat.
- Place the sandwich in the skillet and cover with a lid.
- Heat for 2-3 minutes on each side, pressing gently with a spatula to ensure even warming.
Toaster Oven Method:
- Preheat the toaster oven to 350°F (175°C).
- Wrap the sandwich in aluminum foil.
- Place it in the toaster oven and heat for 5-7 minutes, or until the sandwich is warmed through.
Steaming Method:
- Fill a pot with a small amount of water and bring it to a simmer.
- Place the sandwich in a heatproof dish and cover with a lid.
- Steam for about 5 minutes, checking to ensure the sandwich doesn't get soggy.
Best Tools for Making This Recipe
Saucepan: Used to boil the eggs until they are hard-boiled.
Mixing bowl: Where you will place and mash the peeled eggs.
Fork: Utilized to mash the eggs in the mixing bowl.
Knife: Handy for removing the crusts from the bread and cutting the sandwiches in half.
Cutting board: Provides a surface to cut the bread and sandwiches.
Measuring spoons: Essential for measuring out the mayonnaise and dijon mustard.
Spatula: Useful for spreading the egg mixture evenly on the bread slices.
How to Save Time on Making This Dish
Boil eggs in advance: Hard-boil the eggs the night before and store them in the fridge to save time.
Use an egg slicer: An egg slicer can quickly chop the eggs into uniform pieces, making mashing easier.
Pre-mix condiments: Combine mayonnaise and dijon mustard ahead of time to streamline the mixing process.
Opt for pre-sliced bread: Using pre-sliced bread saves the step of removing crusts and ensures even slices.
Assemble in bulk: Make multiple sandwiches at once and store them in the fridge for quick access.

Japanese Egg Sandwich (Tamago Sando) Recipe
Ingredients
Main Ingredients
- 4 large eggs
- 2 tablespoon mayonnaise
- 1 teaspoon Dijon mustard
- 4 slices white bread crusts removed
- to taste salt and pepper
Instructions
- 1. Boil the eggs in a saucepan for about 10 minutes until hard-boiled.
- 2. Peel the eggs and place them in a mixing bowl. Mash with a fork.
- 3. Add mayonnaise, Dijon mustard, salt, and pepper to the eggs. Mix well.
- 4. Spread the egg mixture evenly on two slices of bread. Top with the remaining slices.
- 5. Cut the sandwiches in half and serve.
Nutritional Value
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