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Tonkotsu miso ramen takes time, but rewards you with something special: a broth so rich and creamy you could almost eat it with a fork. The base is pork bones simmered for hours until the collagen breaks down and the broth becomes silky. Miso adds depth and umami, while the toppings bring freshness and bite. Serve this steaming hot in deep soup bowls so they retain the heat and let you enjoy the ramen at a leisurely pace. This recipe is perfect for a Saturday when you feel like really cooking.

Recipe

Tonkotsu Miso Ramen

A hearty Japanese ramen with a cloudy pork broth, fermented miso paste and fresh toppings. This is weekend cooking at its best.

Course Main course
Kitchen Japanese
Servings 4 servings

Preparation time

Preparation time 45 min
Total 7 hours 45 min

Equipment

  • Large stockpot (at least 5 liters)
  • Heavy braising pan or cast-iron pan
  • Fine-mesh sieve
  • Small saucepan
  • Mixing bowl
  • Kitchen twine
  • Grater
  • Cooking pot (for noodles and eggs)
  • Deep soup bowls

Ingredients

  • 1 kg pork bones (backbone or knuckle bones)
  • 500 g pork belly (for chashu)
  • 3 liters water (for broth)
  • 200 ml water (for chashu braise)
  • 1 piece fresh ginger (5 cm), sliced
  • 1 onion, halved
  • 6 garlic cloves (4 for the broth, 2 for the tare)
  • 4 eggs
  • 60 ml soy sauce (for chashu)
  • 30 ml mirin (for chashu)
  • 30 ml sake
  • 4 tbsp soy sauce (for tamago marinade)
  • 2 tbsp mirin (for tamago marinade)
  • 100 ml water (for tamago marinade)
  • 3 tbsp white miso paste
  • 1 tbsp red miso paste
  • 2 tbsp soy sauce (for tare)
  • 1 tsp grated fresh ginger (for tare)
  • 3 tbsp sesame oil
  • 400 g fresh ramen noodles
  • 2 pak choi, halved
  • 80 g canned bamboo shoots, drained
  • 3 spring onions, finely sliced
  • 1 tbsp neutral oil (for frying chashu)

How to make Tonkotsu Miso Ramen?

    1. Blanch the pork bones: place them in a large pot, cover with cold water and bring quickly to a boil. After 5 minutes, drain and rinse the bones well under cold water. This removes impurities and bloody juices so your broth will have a clean flavor.
    2. Return the cleaned bones to the pot with 3 liters of fresh water. Add the sliced ginger, the halved onion and 4 garlic cloves. Bring to a boil over high heat, then simmer vigorously for 4 to 5 hours with the lid half on the pot. Top up with hot water as needed so the bones stay covered. The broth will gradually become creamy and white: that’s the collagen releasing and emulsifying with the fat.
    3. Meanwhile make the chashu: roll the pork belly tightly and tie it firmly with kitchen twine. Brown the roll all over in a splash of neutral oil in a heavy pan over medium-high heat, about 3 minutes per side. Deglaze with the soy sauce, mirin and sake. Add 200 ml water, cover with a lid and braise over low heat for 1.5 hours. Cool in the braising liquid. You’ll use that liquid later as flavor for the tare. Slice the chashu into roughly 1 cm thick pieces.
    4. Cook the eggs for ramen-tamago: bring water to a boil, gently lower the eggs in and cook exactly 6.5 minutes. Transfer them immediately to a bowl of ice water and chill for 5 minutes. Peel carefully and place in a mixture of 4 tablespoons soy sauce, 2 tablespoons mirin and 100 ml water. Marinate in the fridge for at least 2 hours, longer is fine. They’ll become salty, slightly sweet and beautifully brown on the outside with a still-creamy yolk inside.
    5. Make the tare: heat a small saucepan over medium heat with 1 tablespoon sesame oil. Sauté 2 finely chopped garlic cloves and 1 teaspoon grated ginger for 1 minute without browning. Add the white and red miso pastes together with 2 tablespoons soy sauce and 2 tablespoons of the chashu braising liquid. Stir smooth over low heat. The tare is concentrated, so you only need a few tablespoons per bowl.
    6. Strain the broth through a fine-mesh sieve and discard the bones and vegetables. You’ll be left with a creamy, white broth. Return to a boil and add the tare: start with 1.5 tablespoons per 300 ml of broth and taste as you go. The tare is powerful and salty, so add gradually until you reach the desired depth and saltiness.
    7. Cook the ramen noodles in plenty of boiling water according to the package, usually 2 to 3 minutes. Drain well. Blanch the pak choi in the same boiling water for 1 minute and then transfer immediately to cold water to stop the cooking.
    8. Warm the bowls by pouring hot water into them for a minute, then discard the water. A warm bowl keeps the ramen hot for much longer. Place the noodles in the bottom of each bowl, ladle over the hot broth and arrange the toppings: 2 slices chashu, half a tamago (halved), half a pak choi, a portion of bamboo shoots, some finely sliced spring onion and a few drops of sesame oil.

The quality of your broth hinges on the bones and the cooking time. Ask your butcher specifically for backbone or knuckle bones: they contain lots of collagen and give the broth its creamy, almost milky color. Cook at a rolling, vigorous boil rather than a gentle simmer: it’s the strong bubbling that emulsifies the fat into the broth and makes it cloudy and full of flavor. Taste the broth before you add the tare, because every miso paste varies in saltiness. Start with less tare and add to taste. Always warm your bowls, otherwise the ramen cools down too quickly.

You can keep the broth in the fridge for up to 3 days or freeze it in portions. The chashu can also be made the day before: sliced cold and then briefly fried in a dry pan gives a lovely caramelization. If pork bones aren’t available, use chicken carcasses as an alternative. For extra toppings, narutomaki, dried seaweed or corn also work well. Vegetarian? Replace the broth with a strong dashi made from kombu and dried shiitake, add tahini for creaminess and use firm tofu instead of chashu. The miso tare remains entirely plant-based that way.

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