Marinated Soft-Boiled Ramen Eggs (Ajitsuke Tamago)

Ajitsuke tamago are those glossy, jammy-yolked eggs sitting in a bowl of ramen that you always want more of. The good news: they're completely manageable at home, and once you nail the soft-boil timing, the rest is just patience while the marinade does its work. The yolk should be set at the edges but still a little wobbly and rich in the center. A 6-minute-30-second boil gets you there reliably, as long as your eggs go straight from the fridge into already-boiling water. The marinade is a simple soy, mirin, and sake mixture, sweet and deeply savory. Give them at least four hours in the fridge, though overnight is where the magic really happens. You'll end up with eggs that are beautifully stained a deep amber on the outside and custardy gold within.

Ingredients

  • 8 large eggs Large eggs, straight from the fridge, cold
  • 1/2 cup Soy sauce
  • 1/2 cup Mirin
  • 1/4 cup Sake
  • 1/4 cup Water
  • 1 tbsp Granulated sugar

Instructions

  1. Fill your medium saucepan with enough water to fully submerge 8 large eggs by at least 1 inch. Bring it to a rolling boil over high heat. While you wait, fill a large bowl with cold water and a generous amount of ice, and set it right next to the stove. You want it ready to go the moment the eggs come out.
  2. Once the water is at a hard boil, lower the eggs in one at a time using a slotted spoon. Set a timer for exactly 6 minutes and 30 seconds. Keep the heat high enough to maintain a steady boil throughout. Don't stress if one or two tap the bottom of the pan gently on the way in.
  3. The moment the timer goes off, scoop the eggs out with the slotted spoon and transfer them straight into the ice bath. Leave them there for at least 10 minutes. This stops the cooking fast and makes peeling much easier.
  4. While the eggs are chilling in the ice bath, make the marinade. In your small saucepan, combine 1/2 cup soy sauce, 1/2 cup mirin, 1/4 cup sake, 1/4 cup water, and 1 tbsp granulated sugar. Bring it to a simmer over medium heat, stirring until the sugar dissolves. Let it bubble gently for 2 minutes, then take it off the heat and let it cool to room temperature. Don't pour it over the eggs while it's still hot.
  5. Peel the eggs carefully. Tap each one all over on the counter to crackle the shell, then peel under a thin stream of running water. The shell should slip off fairly cleanly. If a bit of white comes with it, don't worry, the eggs will still taste great.
  6. Place the peeled eggs into a resealable zip-lock bag or a snug airtight container. Pour the cooled marinade over them. If you're using a bag, press out as much air as possible before sealing so the marinade makes full contact with every egg. If using a container, the eggs should be mostly submerged. Refrigerate for at least 4 hours, turning the eggs or the bag over once or twice during that time so the color develops evenly. Overnight gives you a deeper, more even stain and a bolder flavor all the way through.
  7. To serve, pull the eggs from the marinade and halve them lengthwise with a sharp knife, or even better, use a thin piece of unflavored dental floss or a wire to slice through them cleanly for picture-perfect yolks. The yolk should be a deep golden-orange, jammy and set at the edges with a soft center. A sprinkle of sesame seeds and sliced green onions on top is all they need. The leftover marinade keeps in the fridge for up to a week and can be used for a second batch.