As I bite into this creamy delight, I can’t help but think back to my adventures in Japan, where bustling convenience stores offered a treasure trove of quick snacks. The Japanese Egg Sandwich, or Tamago Sando, quickly became my favorite—a soft, buttery treat that’s both comforting and satisfying. This recipe beautifully contrasts textures with its medium-boiled and hard-boiled eggs nestled in fluffy shokupan, making it a quick and easy meal that never fails to please. Plus, it’s vegetarian-friendly, perfect for those of us looking to swap out fast food for a more wholesome option. Are you ready to elevate your snack game with this delectable twist?

Why is Tamago Sando a must-try?
Uniqueness: This Japanese Egg Sandwich redefines simple snacks with its rich, buttery filling and airy shokupan bread.
Flavor Explosion: The delightful mix of creamy Kewpie mayo and subtly seasoned eggs provides a comforting taste that lingers.
Quick & Easy: With straightforward steps, you’ll whip up this savory treat in no time, making it perfect for busy days.
Versatile: You can easily customize by adding ingredients like avocado, or even trying variations with different breads.
Crowd-Pleaser: Whether it’s a midday snack or a light meal, this sandwich is sure to satisfy everyone’s taste buds. Dive into my full guide for more delicious Japanese recipes!
Japanese Egg Sandwich Ingredients
For the Egg Filling
- Large-sized eggs – Use room temperature eggs for easier peeling.
- Whole milk – Adds creaminess to the egg salad; feel free to substitute with non-dairy milk for a lighter option.
- Kewpie Japanese Mayonnaise – This creamy mayonnaise is essential for its unique flavor; American mayo can be used but will change the taste.
- White granulated sugar – Balances the flavors; optional if you prefer less sweetness.
- Diamond Crystal salt – Enhance the overall taste; regular salt can effectively replace it.
- Black pepper – Provides a mild spice; consider using white pepper for a different flavor.
For the Bread
- Shokupan – This soft Japanese milk bread creates a light, fluffy sandwich; you can substitute with regular soft white bread if shokupan isn’t available.
- Unsalted butter – Spread this for extra richness; it’s optional if you’re looking for a dairy-free alternative.
Optional Garnish
- Chives – Adds a fresh flavor and beautiful garnish; green onions can be used instead or omitted altogether.
The Japanese Egg Sandwich is a wonderful addition to your recipe collection, perfect for a quick and satisfying meal!
Step‑by‑Step Instructions for Japanese Egg Sandwich
Step 1: Boil Eggs
Place large-sized eggs in a pot of cold water, ensuring they’re submerged. Bring the water to a rolling boil over medium-high heat, then cover and reduce the heat to medium-low. For medium-boiled eggs, cook for 7 minutes and 30 seconds, and for hard-boiled, 9 minutes. Once done, transfer the eggs immediately to an ice bath, allowing them to cool for 10 minutes before peeling.
Step 2: Prepare Filling
While the eggs cool, grab a mixing bowl and begin mashing the hard-boiled eggs with a fork until you achieve a chunky consistency. Add in whole milk, Kewpie mayonnaise, sugar, salt, and black pepper, mixing thoroughly until combined. Taste and adjust seasoning as desired. Cover the bowl and refrigerate the filling for about 10 minutes to allow flavors to meld and to stabilize the texture before assembly.
Step 3: Assemble Sandwich
Take slices of shokupan and spread unsalted butter generously on one side of each slice. Carefully cut the cooled medium-boiled eggs in half and place them, cut side up, on two slices of bread. Next, top with the chilled egg filling, spreading it evenly. Cover with buttered bread slices, butter side down, creating a delightful sandwich that showcases both the creamy filling and tender egg halves.
Step 4: Serve
Use a sharp knife to slice the assembled Japanese Egg Sandwich in half diagonally, revealing the beautiful filling inside. Arrange the sandwiches on a plate and serve immediately for the best taste and texture. Enjoy this comforting Tamago Sando on its own or with a side of pickled vegetables for a delightful, complete meal.

Expert Tips for Japanese Egg Sandwich
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Egg Freshness Matters: Make sure to use slightly older eggs for easier peeling after boiling. Fresh eggs tend to stick to the shell!
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Perfect Boiling Times: Adjust boiling times carefully based on the size of your eggs. Medium-boiled eggs should be cooked for about 7 minutes and 30 seconds.
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Chill the Filling: After mixing the egg filling, chill it for at least 10 minutes. This step helps stabilize the texture and enhances flavors.
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Bread Choice: While shokupan is traditional, feel free to substitute with soft white bread if unavailable. Ensure it’s fresh for the best texture.
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Don’t Skip the Butter: Spreading unsalted butter on the bread adds richness. If you prefer to skip the dairy, you can omit this step.
Japanese Egg Sandwich Variations & Substitutions
Customize your Japanese Egg Sandwich to awaken your taste buds and explore delightful twists that suit your cravings!
- Dairy-Free Option: Substitute whole milk with almond or oat milk for a lighter, dairy-free version.
- Flavor Boost: Add a spoonful of sriracha or wasabi to your egg filling for a zesty kick that transforms every bite.
- Herb Infusion: Mix in fresh dill or parsley with the egg filling for an aromatic touch that adds brightness.
- Texture Twist: For a crispy bite, toast the shokupan slices before assembling, providing a beautiful crunch against the creamy filling.
- Avocado Love: Spread ripe avocado on the bread before adding the egg filling for extra creaminess and a wonderful health boost. The lush green addition pairs beautifully with the soft egg.
- Spice Things Up: Incorporate finely chopped jalapeños into the filling for a heat level that can be customized to your liking. It’s a fantastic way to elevate the traditional taste.
- Brioche Substitute: For a richer, more indulgent flavor, swap out shokupan for brioche bread. Its slightly sweet, buttery notes will create a decadent experience.
- Garnish Ideas: Top with microgreens or arugula for a fresh, vibrant finish that enhances both the visuals and taste of your sandwich.
Remember, experimenting in the kitchen can lead to delicious discoveries! And if you’re looking for more inspiration, check out my guide on how to make vegetarian sandwiches or add some sides like pickled vegetables to perfectly complement your Tamago Sando. Enjoy the journey of flavors!
How to Store and Freeze Japanese Egg Sandwich
Fridge: Store your assembled Japanese Egg Sandwich in an airtight container for up to 2 days. Be sure to keep them refrigerated to maintain freshness and texture.
Filling: If you want to make the egg filling ahead of time, you can store it in the fridge for up to 1 day. Just ensure it’s well-covered to prevent it from drying out.
Freezer: While it’s best to enjoy the sandwich fresh, you can freeze the egg filling for up to 1 month in an airtight container. Thaw in the fridge overnight before assembling.
Reheating: If refrigerated, enjoy the sandwich cold, or heat it gently in a toaster oven, keeping it wrapped in foil to prevent drying out.
Make Ahead Options
These Japanese Egg Sandwiches are perfect for meal prep enthusiasts! You can prepare the egg filling up to 24 hours in advance by mashing the hard-boiled eggs and mixing them with whole milk, Kewpie mayonnaise, sugar, salt, and pepper. Simply refrigerate the mix in an airtight container to keep it fresh and avoid any browning. When you’re ready to enjoy the sandwiches, spread butter on your shokupan, place medium-boiled egg halves on the slices, top with the chilled egg filling (make sure it’s still cold for optimal flavor), and assemble the sandwich. This method not only saves you prep time but also ensures delicious, fresh tastes at your fingertips!
What to Serve with Japanese Egg Sandwich (Tamago Sando)
Brighten up your mealtime experience with delightful sides and drinks that pair perfectly with this creamy, comforting sandwich.
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Pickled Vegetables: These add a crunchy, tangy contrast that complements the softness of the sandwich beautifully. The vibrant flavors elevate each bite.
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Miso Soup: A warm, savory soup that offers a rich umami experience, balancing the richness of the egg filling. It’s a soothing way to start your meal.
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Japanese Fruit Salad: Fresh fruits like melon, strawberries, and kiwi create a refreshing burst of sweetness, providing a light counterpoint to the egg sandwich.
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Cucumber Salad: Crisp and refreshing, this dish brings a delightful crunch and subtle tang that harmonizes with the creamy texture of the Tamago Sando.
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Green Tea: A gentle, fragrant drink that cleanses the palate, making it the perfect accompaniment. Its earthy notes perfectly balance the richness of the sandwich.
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Matcha Ice Cream: For a sweet finish, its creamy texture paired with the unique taste of matcha creates a delightful contrast after your savory meal.
Each of these delightful pairings enhances the experience, making your Japanese Egg Sandwich truly unforgettable. Enjoy!

Japanese Egg Sandwich (Tamago Sando) Recipe FAQs
How do I select the best eggs for my sandwich?
Absolutely! When selecting eggs, choose large-sized eggs that are at room temperature for the best peeling results after boiling. Avoid very fresh eggs, as they tend to stick to the shell, making peeling more difficult. A good visual cue is to look for eggs that are a few days old for optimal results.
What is the best way to store my Japanese Egg Sandwich?
You can store your assembled Japanese Egg Sandwich in an airtight container in the fridge for up to 2 days. To maintain freshness, ensure the container is sealed tightly. It’s best to enjoy it fresh, but if you need to prep in advance, consider making the filling separately to keep the bread from becoming soggy.
Can I freeze the Japanese Egg Sandwich?
While the sandwich is best fresh, you can freeze the egg filling for up to 1 month in an airtight container. To do this, allow the filling to cool completely, then transfer to a container and label it with the date. When you’re ready to use it, simply thaw it overnight in the fridge and assemble your sandwich. However, I recommend enjoying the sandwich fresh for the ideal texture!
What if my eggs cracked while boiling?
Very! If your eggs crack while boiling, don’t worry too much—this often happens. Just make sure to keep an eye on the boiling time, as any added water may slightly affect your cooking. If you find this happening frequently, consider lowering the heat after bringing the water to a boil to prevent rapid bubbling that can cause cracks.
Are there any dietary considerations for the Japanese Egg Sandwich?
Certainly! This delicious sandwich is vegetarian-friendly, making it a great option for those who don’t eat meat. If you’re accommodating allergies, be mindful of using Kewpie and any dairy ingredients. You can substitute with a vegan mayonnaise and dairy-free butter to ensure everyone can enjoy this tasty treat! Always check ingredient labels for potential allergens too.

Japanese Egg Sandwich: A Creamy, Tempting Delight
Ingredients
Equipment
Method
- Place large-sized eggs in a pot of cold water, ensuring they’re submerged. Bring the water to a rolling boil over medium-high heat, then cover and reduce the heat to medium-low. For medium-boiled eggs, cook for 7 minutes and 30 seconds, and for hard-boiled, 9 minutes. Once done, transfer the eggs immediately to an ice bath for 10 minutes before peeling.
- While the eggs cool, mash the hard-boiled eggs in a mixing bowl until chunky. Add in whole milk, Kewpie mayonnaise, sugar, salt, and black pepper, mixing thoroughly. Taste and adjust seasoning. Cover and refrigerate for 10 minutes.
- Spread unsalted butter generously on one side of each slice of shokupan. Cut the cooled medium-boiled eggs in half and place them cut side up on two slices of bread. Top with the chilled egg filling, spreading evenly. Cover with buttered bread slices, butter side down.
- Slice the assembled sandwich in half diagonally and serve immediately. Enjoy your Tamago Sando on its own or with a side of pickled vegetables.

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