Introduction to Japanese Egg Sandwich (Tamago Sando)
What is a Japanese Egg Sandwich (Tamago Sando)?
The Japanese Egg Sandwich, or Tamago Sando, is a delightful twist on the classic egg salad sandwich, cherished in Japan for its creamy texture and subtle flavors. Typically made with soft-boiled or hard-boiled eggs, this sandwich is transformed into a decadent treat by incorporating Kewpie mayonnaise, which adds a uniquely rich and tangy taste. If you’ve ever wandered through a Japanese convenience store, you may have stumbled upon this lunchtime favorite, neatly packed and waiting to be devoured.
What sets the Tamago Sando apart is its use of shokupan, a fluffy Japanese milk bread that provides a soft, pillowy base for the rich egg filling. This sandwich is not only simple to prepare but also incredibly versatile—perfect for a quick snack or a satisfying lunch. It's a comforting reminder of home for many and a must-try for those looking to explore Japanese cuisine.
The best part? Making your own Japanese Egg Sandwich is straightforward! With just a handful of ingredients and minimal preparation time, you too can enjoy this delicious dish, reminiscent of your favorite bento box lunches. Ready to dive into the recipe? Let’s get started!

Ingredients for Japanese Egg Sandwich
Essential ingredients for the classic version
To whip up a delightful Japanese Egg Sandwich, here are the must-have ingredients you'll need for the classic creamy version:
- 2 large eggs
- 1 tablespoon + 1 teaspoon Kewpie mayonnaise
- ⅛ teaspoon sugar
- 1 teaspoon ketchup (optional, but adds a nice touch)
- Pinches of nutmeg and MSG (both optional)
- ⅛ teaspoon salt
- ⅛ teaspoon freshly cracked black pepper
- 2 slices of shokupan (Japanese milk bread)
- Butter for spreading
This combination creates a luxurious and smooth egg salad that's exclusive to Japanese lunch culture. You can find Kewpie mayonnaise in most Asian grocery stores or online for an authentic taste.
Ingredients for the soft-boiled variation
If you’re looking for an exciting twist, consider our soft-boiled variation. Here’s what you’ll need:
- 4 large eggs (2 soft-boiled and 2 hard-boiled)
- 1 tablespoon + 1 teaspoon Kewpie mayonnaise
- ⅛ teaspoon sugar
- Optional: 1 teaspoon ketchup, nutmeg, and MSG
- ⅛ teaspoon salt
- ⅛ teaspoon freshly cracked black pepper
- 2 slices of shokupan
- Butter for spreading
This variation offers a delightful mix of textures, with the creamy, flavorful egg salad complementing the soft-boiled eggs beautifully. Whichever version you choose, both are fantastic options for a quick and satisfying lunch!
Preparing the Japanese Egg Sandwich
Making a delicious Japanese Egg Sandwich (or tamago sando) at home is easier than you might think! This delightful dish features a creamy egg salad nestled between soft, fluffy bread. In this section, I'll guide you through each step so you can enjoy this comforting snack or lunch, just like the ones found in Japanese convenience stores.
Boil and Prepare the Eggs
Start by boiling your eggs. You’ll need two for the classic egg sandwich and four for the soft-boiled egg variation. For the classic version, place your eggs in a pot and cover them with cold water. Bring the water to a boil, then reduce to a simmer for about 9-10 minutes for hard-boiled eggs. After cooking, transfer the eggs to an ice bath for about 5 minutes. This not only cools them down but also makes peeling easier!
For the soft-boiled eggs, just reduce the boiling time to about 6-7 minutes. The goal is a runny yolk, which adds a luxurious touch to the sandwich.
Make the Classic Egg Salad
Once your eggs are cooled, peel them gently. For the classic egg sandwich, separate the yolks from the whites. In a bowl, mash the yolks with Kewpie mayonnaise, sugar, and seasonings like salt and black pepper. Feel free to add a splash of ketchup for a hint of sweetness or nutmeg for depth. Next, chop the egg whites finely and fold them into the creamy yolk mixture. This will give your egg salad a satisfying texture!
Assemble the Classic Egg Sandwich
Now it’s time to assemble! Take two slices of fluffy shokupan—the star bread in this recipe. Remove the crusts for that authentic look and feel. Spread a thin layer of butter on one side of each slice, then generously pile on the egg salad. Make sure to focus on the center of the bread to create a lovely cross-section when you cut it. Wrap it up in plastic wrap for about 5 minutes to help meld the flavors together before slicing. You’ll be amazed at how this little resting period makes the sandwich even better!
Soft Boil the Extra Eggs for the Second Variation
While the classic egg salad is delicious, the soft-boiled egg sandwich offers a unique spin. Use the remaining four eggs you set aside. Soft-boil two of them just like before, adjusting the cooking time so the yolks remain runny. The other two should be hard-boiled for the salad.
Construct the Soft-Boiled Egg Sandwich
For this version, you have an exciting assembly process. Leave the crusts on the shokupan for added texture, and butter one side of each slice. Lay a thick layer of the egg salad on one slice, then gently place the two soft-boiled eggs in the middle. Top with more egg salad to hold everything together, but ensure a little yolk is still visible for that enticing look. Place the second slice on top, butter side down, and wrap it tightly in parchment paper. Resting it under a light plate will help maintain its structure when you slice into it. Enjoy your homemade Japanese Egg Sandwich!
For more tips on perfecting your egg cooking techniques, check out resources like Serious Eats. Happy sandwich making!

Variations on the Japanese Egg Sandwich
If you’re looking to switch up your Japanese Egg Sandwich game, you’re in for a treat! Let’s explore two popular variations that will tantalize your taste buds.
Classic Creamy Egg Salad Version
The classic version features a creamy egg salad made with hard-boiled eggs and Kewpie mayonnaise, offering a delightful texture and flavor. This portable snack is perfect for busy days and is reminiscent of cherished childhood memories from Japanese convenience stores. For a little twist, consider adding a touch of ketchup or freshly cracked black pepper for an extra kick!
Soft-Boiled Egg Version
For a more decadent experience, try the soft-boiled egg version. Utilizing both soft and hard-boiled eggs, this sandwich delivers a delightful contrast of textures. The soft-boiled eggs add a luxurious creaminess, while the seasoned egg salad complements them perfectly. Each bite brings a wonderful harmony of flavors that can elevate any lunch!
Feeling inspired? Dive into both recipes and discover which variation becomes your favorite!
Cooking notes for Japanese Egg Sandwich
Tips for achieving the best texture
To elevate your Japanese Egg Sandwich, focus on using fresh, fluffy Japanese milk bread (shokupan). This soft bread enhances the creaminess of the egg salad. For the eggs, choose the right cooking method: hard-boil them gently for creaminess or opt for soft-boiled for a delightful runny yolk. Make sure to fine chop the egg whites and mix them thoroughly with the yolks to avoid clumps. Lastly, a light resting period wrapped in plastic or parchment helps meld the flavors beautifully.
Common mistakes to avoid
One common pitfall is overcooking the eggs, leading to a dry texture. Also, don’t skip removing the crusts, as it improves both aesthetics and texture. While it's tempting to load up on mayonnaise, stick to the recommended amount for a balanced flavor. Finally, remember to slice your sandwich with a sharp knife. These small details will ensure your Japanese Egg Sandwich is nothing short of perfection!

Serving Suggestions for Japanese Egg Sandwich
Perfect Pairings with Drinks
When indulging in a delicious Japanese Egg Sandwich, consider enjoying it alongside a refreshing green tea or a light iced coffee. Both beverages offer a clean palate that complements the creamy texture of the sandwich. If you're feeling adventurous, a tangy yuzu soda can add a delightful zesty twist that pairs beautifully with the savory filling.
Ideal Side Dishes to Complement the Sandwich
To elevate your tamago sando experience, serve it with a side of crispy potato chips or pickled vegetables. The crunchiness of chips adds a satisfying contrast, while pickles provide a refreshing bite. For a lighter option, a simple salad with sesame dressing will beautifully balance the richness of the sandwich. Embrace these pairings for a delightful lunch that feels like a mini Japanese café experience right at home!
Time Breakdown for Japanese Egg Sandwich
Preparation Time
Get ready to whip up your Japanese Egg Sandwich in just 10 minutes! This includes gathering your ingredients and prepping your eggs, so you're all set for a delicious snack.
Cooking Time
Cooking takes about 14 minutes. This gives you plenty of time to boil and cool your eggs to perfection for that creamy filling.
Total Time
In just 24 minutes, you can enjoy a delightful tamago sando that’s perfect for lunch or a quick bite. Simple, right? Now, let's get started on this tasty adventure!
Nutritional Information for Japanese Egg Sandwich
When you indulge in a delicious Japanese Egg Sandwich, you’re not just treating your taste buds but also fueling your body. Here's a quick glance at its nutritional benefits:
Calories
The sandwich packs approximately 451 calories, making it a satisfying option for lunch or a filling snack.
Protein
With 17 grams of protein, this sandwich is a fantastic choice for replenishing energy after a busy morning, especially if you’re on the go.
Sodium
Just be mindful of the 730 mg of sodium per serving, which adds flavor but can be a point of concern if you’re watching your intake.
For a deeper dive into the health benefits of ingredients like Kewpie mayonnaise and shokupan, you might enjoy checking out resources from the Harvard T.H. Chan School of Public Health or the USDA FoodData Central.
FAQs about Japanese Egg Sandwich
Can I make this sandwich ahead of time?
Absolutely! The Japanese Egg Sandwich, or Tamago Sando, can be made a few hours in advance, making it perfect for meal prep or a quick lunch. Just remember to wrap it tightly in plastic wrap or parchment paper to keep it fresh.
How long can I store Japanese Egg Sandwich?
You can store your uncut Japanese Egg Sandwich in the refrigerator for up to 24 hours. Beyond that, the bread might begin to lose its fluffy texture. If you anticipate it lingering longer, consider making the egg filling separately and assembling the sandwich fresh when you're ready to enjoy it.
What bread works best for Tamago Sando?
For an authentic taste, using shokupan (Japanese milk bread) is highly recommended. Its soft, fluffy texture complements the creamy egg filling beautifully. You can find shokupan in Japanese or Asian grocery stores, or try your hand at making it from scratch for that ultimate homemade touch!
For more information on shokupan, check out Just One Cookbook, which has great insights!
Conclusion on Japanese Egg Sandwich
The Japanese Egg Sandwich is more than just a snack; it's a delightful experience that embodies comfort and creativity. Whether you choose the classic creamy version or the soft-boiled variation, this sandwich is sure to brighten your day. Enjoy this simple yet satisfying meal anytime and savor a taste of Japan!

Japanese Egg Sandwich (Tamago Sando) タマゴサンド
Equipment
- Pot
- Bowl
- Knife
- plastic wrap
- parchment paper
Ingredients
Classic Egg Sandwich
- 2 large eggs
- 1 tablespoon Kewpie mayonnaise plus 1 tsp
- ⅛ teaspoon sugar
- 1 teaspoon ketchup optional
- ⅛ teaspoon nutmeg optional
- ⅛ teaspoon MSG optional
- ⅛ teaspoon salt
- ⅛ teaspoon freshly cracked black pepper
- 2 slices shokupan 8-slice count preferred
- butter for spreading
Soft Boiled Egg Sandwich
- 4 large eggs
- 1 tablespoon Kewpie mayonnaise plus 1 teaspoon (20 g)
- ⅛ teaspoon sugar (1.6 g)
- 1 teaspoon ketchup optional (2.5 g)
- ⅛ teaspoon nutmeg optional
- ⅛ teaspoon MSG optional
- ⅛ teaspoon salt
- ⅛ teaspoon freshly cracked black pepper
- 2 slices shokupan 6-slice count preferred
- butter for spreading
Instructions
Classic Egg Sandwich
- Boil the Eggs: Hard boil the eggs, cool in ice water, and peel.
- Prepare the Egg Salad: Separate yolks and whites. Mash the yolks with mayo, sugar, ketchup, nutmeg, MSG, salt, and pepper. Finely chop the whites and fold them into the yolk mixture.
- Assemble the Sandwich: Remove crusts from the bread. Butter one side of each slice. Spread the egg salad on top of the bread, focusing slightly more on the middle for a nice cross section.
- Wrap & Rest: Wrap in plastic wrap tightly and let it rest for 5 minutes.
- Slice & Serve: Cut in half with a very sharp knife. Remove the plastic wrap and enjoy!
Soft Boiled Egg Sandwich
- Cook the Eggs: Soft boil 2 eggs and hard boil the remaining 2 eggs. Chill in ice water, then peel.
- Make the Egg Salad: Separate the yolks and whites of the hard-boiled eggs. In a bowl, mash the yolks with Kewpie mayo, sugar, ketchup, nutmeg, MSG, salt, and pepper until smooth. Chop the whites finely and fold into the yolk mixture.
- Assemble: Leave the crusts on. Butter one side of each slice of bread. Add a generous amount of egg salad to one slice, concentrating more in the center. Place the two soft-boiled eggs horizontally in the middle. Spoon more egg salad between the eggs, around and on top of the eggs to hold them in place. Top with the second slice of bread butter side down.
- Wrap & Rest: Wrap the sandwich tightly in parchment paper. Be sure to wrap it so that the eggs will be sliced in half when cutting the sandwich. Place a light plate (or something flat and light) on top and let rest for 5 minutes to help it hold its shape.
- Slice & Serve: Slice through the center (the tallest part) for the best cross-section. Serve immediately and enjoy!





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