Marinated Soft-Boiled Eggs (Ajitsuke Tamago)
味付け玉子 Ajitsuke tamagoSay it: ah-jee-tsoo-keh tah-mah-goh
Ajitsuke tamago are Japanese soft-boiled eggs marinated in a sweet-savory soy and mirin sauce, with a jammy custard-like yolk and a silky, deeply seasoned white. They are a beloved ramen topping, bento staple, and izakaya side, prized for how the marinade cures the eggs to a glossy brown and concentrates their umami. The contrast between the salty-sweet exterior and the rich, barely set yolk is precisely why these eggs turn a simple bowl of noodles into something special.
Marinated Soft-Boiled Eggs (Ajitsuke Tamago)
味付け玉子, Ajitsuke tamago
Pronounced ah-jee-tsoo-keh tah-mah-goh
- Serves
- 4
- Prep
- 10 min
- Cook
- 7 min
- Total
- 17 min
- Level
- Easy
Also nut-free.
Allergens: contains soy, egg, gluten. Check labels on packaged ingredients.
Ingredients
Amounts are scaled. Cooking times and pan sizes stay the same.
Method
Fill a medium saucepan with enough water to cover the eggs by 1 inch (2.5 cm) and bring to a rolling boil over high heat.
Using a slotted spoon, gently lower the cold eggs into the boiling water. Boil for 6½ minutes for liquid, jammy yolks, or 7 minutes for slightly firmer centers.
Immediately transfer the eggs to an ice water bath and let them cool for at least 5 minutes. Peel carefully under gently running water, starting from the rounded end where the air pocket sits.
In a small saucepan, combine the soy sauce, mirin, sake, water, and sugar. Warm over medium heat, stirring, just until the sugar dissolves and the mixture is steaming; remove from heat and let cool completely.
Place the peeled eggs in a container just large enough to hold them snugly, or in a zipper-lock bag. Pour the cooled marinade over the eggs; place a folded paper towel or a small plate on top to keep them submerged.
Cover and refrigerate for at least 4 hours, preferably 8–12 hours, turning the eggs once or twice. The whites will take on an even glossy brown color and the yolks will become jammy and seasoned.
Remove the eggs from the marinade, slice in half lengthwise, and serve.
Regional variant: Soy Sauce Eggs (Shoyu Tamago)
For a firmer, deeply seasoned egg, hard-boil the eggs instead of soft-boiling them. Peel and simmer the eggs in the same soy-mirin-sake marinade over low heat for 30–60 minutes, turning occasionally, until the whites are browned and the yolks are fully set and savory. Cool in the liquid and store refrigerated.
Cook's notes
- Use eggs that are a few days old for easier peeling; very fresh eggs stick to the shell.
- Marinate up to 24 hours for deeper color and salt, but remove after 48 hours as the eggs become firmer and saltier.
- For even coloring, flip the eggs halfway through marinating.
Serve with
Serve halved on ramen, over steamed rice, in bento boxes, or as a snack with Japanese pickles and cold beer.
Make ahead and storage
Store in the marinade in the fridge for up to 2 days; for a less salty result, transfer the eggs to an airtight container after 12 hours.
