Equipment
Ingredients
Broth Base (Tare)
- 1 egg yolk, separated
- 15 g kewpie mayonnaise
- 1 garlic, finely grated
- ½ instant ramen seasoning packet
Noodles & Cooking Liquid
- 1 instant ramen noodles, dry block
- 450 ml water
Elevated Toppings
- 1 egg, whole, cold from fridge
- 1 scallion, thinly sliced
- 3 g toasted sesame seeds
- 5 ml chili oil
- 1 nori seaweed, cut into small squares
Nutrition (per serving)
Method
In your large serving bowl, combine the raw egg yolk, Kewpie mayonnaise, finely grated garlic, and half of the ramen seasoning packet. Whisk vigorously until the mixture forms a smooth, thick paste.
Bring the water to a rolling boil (100°C/212°F) in a small saucepan. Carefully lower the whole cold egg into the water. Boil for exactly 6 minutes for a firm white and jammy yolk. Remove the egg with a slotted spoon and immediately plunge into ice water. Leave the saucepan of water boiling.
Add the dry instant ramen noodle block to the boiling water. Cook according to package instructions, typically about 3 minutes, teasing the noodles apart with chopsticks as they soften.
Turn off the heat. Carefully ladle roughly 100ml of the hot starchy noodle water into the serving bowl containing the egg yolk paste. Whisk vigorously while pouring to temper the egg and emulsify the liquids into a creamy, cloudy broth.
Pour the remaining hot water and noodles into the serving bowl. Stir gently to ensure the noodles are evenly coated and the broth is fully integrated.
Peel and halve the cooled soft-boiled egg (internal temperature should reach at least 63°C/145°F). Arrange the egg halves on top of the noodles. Garnish with sliced scallions, toasted sesame seeds, nori squares, and a drizzle of chili oil. Serve immediately.
Chef's Notes
- The combination of Kewpie mayonnaise (which contains MSG and egg yolks) and a raw yolk acts as a cheat code for tonkotsu ramen. It mimics the lip-smacking lipid emulsion of pork bones boiled for 12 hours.
- Using only half the seasoning packet is critical. The mayonnaise and optional toppings add significant sodium and umami; a full packet will make the dish aggressively salty.
- For an extra layer of flavor, lightly toast the minced garlic in a teaspoon of sesame oil before adding it to the yolk mixture to remove its raw bite.
- Do not skip the ice bath for the soft-boiled egg. The carryover cooking will quickly turn a jammy 6-minute yolk into a chalky, hard-boiled center.










