5-Ingredient Ajitsuke Tamago (Japanese Soft-Boiled Flavored Egg)

By Kyrié the Foodié Back to Recipes

Ajitsuke Tamago (味付け卵), often called ramen eggs, is a quintessential topping in Japanese ramen that elevates the dish with its rich flavor and perfect texture. These marinated soft-boiled eggs are known for their creamy, slightly runny yolk (although you can definitely cook it to your preferred texture!) and savory-sweet taste.

The word “ajitsuke tamago” directly translates to “seasoned egg,” which reflects their preparation—surrounded by a flavorful marinade typically made of soy sauce, mirin, and water, sometimes enhanced with sake, sugar, or other aromatics.

The process of making ajitsuke tamago begins with boiling (or air-frying, which will be shown in the instructions) the eggs for just the right amount of time—usually 6 to 7 minutes—to achieve that signature jammy yolk. Once cooked, they’re carefully peeled and soaked in the marinade. The longer they sit, the deeper the flavor penetrates, but they’re best consumed within a couple of days to maintain their delicate texture.

Ingredients:

Making Ajitsuke Tamago is quite simple, it just takes time and patience so it tastes best marinaded overnight. Here are the ingredients:

  1. Eggs: Soft-boiling the eggs ensures the yolk remains slightly runny while the whites take on the savory flavors of the marinade. Using 4 eggs maximizes the amount of egg that can absorb the marinade, but you can adjust the number based on your needs.
  2. Soy Sauce: The backbone of the marinade, contributing a salty, umami flavor that deeply infuses the eggs.
  3. Water: Water helps to dilute the soy sauce slightly, balancing the overall saltiness of the marinade.
  4. Mirin: Adds a subtle sweetness to the marinade, which balances out the salty soy sauce.
  5. Sugar: Sugar enhances the sweetness of the mirin and helps to round out the flavor of the marinade.
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Ajitsuke Tamago (Japanese Soft-Boiled Flavored Egg)


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  • Author: kyriethefoodie
  • Total Time: 11 minutes

Description

Ajitsuke Tamago, or ramen eggs, are soft-boiled eggs marinated in a savory-sweet blend of soy sauce, mirin, and water, known for their creamy, jammy yolks and rich umami flavor.


Ingredients

Units Scale
  • 4 eggs (you can do less, too, but this number allows you to maximize the marinade!)
  • 1/3 cup soy sauce
  • 1/4 cup water
  • 1/4 cup mirin
  • 1 tsp sugar

Instructions

Air Frying the Eggs:

  1. To your air fryer, add your eggs and make sure they all are touching the bottom of the air fryer and aren’t stacked.
  2. Heat your air fryer to 300 F (149 C) and air fry the egg(s) for 8 minutes.
  3. When it’s done air-frying, immediately submerge your egg(s) into a bowl filled with water and ice cubes before peeling. Tip: for easier peeling, submerge your eggs into the cold water while peeling. Set the eggs aside.
  4. To a quart-sized plastic bag or deep container (must be able to fit the eggs completely), mix the soy sauce, mirin, water, and sugar.
  5. Place the peeled eggs into the bag or container, ensuring they are fully submerged. Seal the bag or cover the container and refrigerate for 4 hours to overnight. The longer they sit in the marinade, the more the flavors will penetrate the eggs. I recommend eating the eggs within 2 days.
  6. Remove the eggs from the marinade and slice them in half just before serving to reveal the yolk. Use as a topping for ramen, rice bowls, or enjoy them as a snack.

Boiling the Eggs:

  1. Bring a pot with water filled enough to submerge the egg(s) to a simmer.
  2. Carefully drop in your eggs to the water and allow to simmer for 6-6 1/2 minutes. You can go for 30 seconds to a minute longer depending on how cooked you want the egg yolks to be.
  3. When it’s done air-frying, immediately submerge your egg(s) into a bowl filled with water and ice cubes before peeling. Tip: for easier peeling, submerge your eggs into the cold water while peeling. Set the eggs aside.
  4. To a quart-sized plastic bag or deep container (must be able to fit the eggs completely), mix the soy sauce, mirin, water, and sugar.
  5. Place the peeled eggs into the bag or container, ensuring they are fully submerged. Seal the bag or cover the container and refrigerate for 4 hours to overnight. The longer they sit in the marinade, the more the flavors will penetrate the eggs. I recommend eating the eggs within 2 days.
  6. Remove the eggs from the marinade and slice them in half just before serving to reveal the yolk. Use as a topping for ramen, rice bowls, or enjoy them as a snack.
  • Prep Time: 5 minutes
  • Cook Time: 6 minutes

Nutrition

  • Serving Size: 4

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Welcome!

We’re Kyrié and Jeff—a foodie and farmer sharing approachable recipes and fresh-from-the-garden inspiration.

4 Comments

  1. zidane

    this article is very useful, thank you for making a good article

    Reply
  2. Maya Spencer

    I never knew you could make this in the air fryer!

    Reply

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Kyrié the Foodié - Asian Recipes

Kyrié is a half-Japanese food content creator and avid home cook who specializes in Asian cuisine, with a focus on Japanese. She loves developing recipes and sharing approachable yet authentic meals. When she’s not in the kitchen, she’s helping her husband Jeff tend to their garden, or on some artistic venture.

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