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)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 552 kcal
- Protein
- 20 g
- Carbohydrates
- 67 g
- Fat
- 22 g
- Fiber
- 4 g
- Sugar
- 2 g
- Sodium
- 1970 mg
- Saturated Fat
- 4 g
- Trans Fat
- 0 g
- Monounsaturated Fat
- 6 g
- Polyunsaturated Fat
- 6 g
- Cholesterol
- 348 mg
- Potassium
- 291 mg
- Calcium
- 132 mg
- Iron
- 6.0 mg
- Magnesium
- 53 mg
- Phosphorus
- 296 mg
- Zinc
- 2.0 mg
- Vitamin A
- 150 mcg
- Vitamin C
- 6 mg
- Vitamin D
- 1.8 mcg
- Vitamin E
- 1.6 mg
- Vitamin K
- 40 mcg
- Vitamin B6
- 0.3 mg
- Vitamin B12
- 0.7 mcg
- Thiamin
- 0.59 mg
- Riboflavin
- 0.70 mg
- Niacin
- 4.5 mg
- Folate
- 166 mcg
- Water
- 532 g
Sources: Aggregated Public Data, USDA FoodData Central
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.
Storage
Troubleshooting
Broth looks split, grainy, or has chunks of cooked egg
Cause: The hot water was added too quickly to the egg yolk mixture, causing the proteins to scramble rather than emulsify.
Fix: Cannot be fixed once scrambled, but is still safe and delicious to eat.
Prevention: Ladle the hot water in a slow, thin stream while whisking the yolk mixture continuously.
Soft-boiled egg is too runny or egg white is raw
Cause: Water was not at a full rolling boil when the egg was added, or the egg was extremely large.
Fix: Submerge peeled egg halves in the hot ramen broth for 2 minutes to gently finish cooking.
Prevention: Ensure water is rapidly boiling (100°C) before dropping the egg in, and use standard large eggs.
Cultural Context
Instant ramen was invented in 1958 by Momofuku Ando in Japan as a solution to post-war food shortages. Today, 'ramen hacking' is a global culinary subculture. The technique of emulsifying a raw egg and mayonnaise with noodle water originated in online Japanese and Korean food communities as a way to replicate rich, restaurant-quality paitan (cloudy) broths at home using pantry staples.
