Tonkotsu Ramen

A rich, cloudy pork bone broth simmered for hours becomes the soul of this bowl, topped with tender chashu pork, a jammy marinated egg, and springy alkaline noodles.

Advanced Free ★ ★ ★ ★ ☆ (350 reviews)
Tonkotsu Ramen
Prep Time 40 min
Cook Time 480 min
Total Time 520 min
Servings 4 large bowls
Difficulty Advanced

Ingredients

  • 4 pounds pork neck bones and trotters, mixed
  • 1 pound pork belly, rolled and tied
  • 1 whole head garlic, halved crosswise
  • 1 (2-inch) piece fresh ginger, sliced
  • 2 scallions, plus more thinly sliced for garnish
  • 1/2 cup soy sauce
  • 1/4 cup mirin
  • 1/4 cup sake
  • 2 tablespoons sugar
  • 4 large eggs
  • 4 (portions) fresh ramen noodles
  • 2 tablespoons toasted sesame oil
  • 2 sheets nori, quartered
  • 1 cup bean sprouts
  • 1 tablespoon kosher salt

Instructions

  1. Place the pork neck bones and trotters in a very large stockpot, cover with cold water, and bring to a boil over high heat; boil hard for 10 minutes to release scum.
  2. Drain the bones in a colander and rinse them thoroughly under cold water, scrubbing off any grey residue - this step is what keeps the broth clean-tasting instead of gamey.
  3. Return the rinsed bones to the cleaned pot and cover with 5 quarts of fresh cold water.
  4. Bring to a rolling boil over high heat, then keep it at a hard, rattling boil (not a gentle simmer) for 6 to 8 hours, topping up with hot water as needed to keep bones submerged; this vigorous boil is what emulsifies the fat into the broth and turns it milky white.
  5. In the last hour, add the garlic and ginger to the pot.
  6. Meanwhile, make the chashu: combine the soy sauce, mirin, sake, sugar, and 1 cup water in a pot just large enough to hold the pork belly, bring to a simmer, and add the tied pork belly.
  7. Cover and simmer the pork belly gently over low heat for 2 hours, turning occasionally, until fork-tender and cooked to a safe internal temperature of at least 145 F (it will be well past this).
  8. Remove the pork belly, let it cool slightly, then slice into 1/2-inch rounds; reserve the braising liquid.
  9. Soft-boil the eggs by lowering them into boiling water and cooking for exactly 6 1/2 minutes, then transferring to an ice bath; once cool, peel and marinate them in the reserved chashu braising liquid for at least 2 hours.
  10. Strain the finished broth through a fine-mesh sieve, discarding the solids, and season with 1 tablespoon salt and toasted sesame oil, adjusting to taste; the broth should look pale, milky, and taste deeply porky.
  11. Cook the ramen noodles in a separate pot of boiling water according to package directions, about 1 to 2 minutes for fresh noodles, until springy but cooked through.
  12. Divide the hot broth among 4 large bowls, add a portion of drained noodles to each, and top with sliced chashu, a halved marinated egg, bean sprouts, nori, and sliced scallions.
  13. Serve immediately while the broth is piping hot.

Why You'll Love This

  • Rich, milky-white broth from a full day of simmering pork bones
  • Tender braised chashu pork and a jammy marinated egg
  • An authentic ramen shop experience at home

The initial hard boil-and-rinse of the raw bones is not optional - it removes impurities that would otherwise make the broth taste gamey and look muddy instead of clean and white.

Keep the broth at a rolling boil, not a simmer, for most of the cook time; the vigorous agitation is what emulsifies the collagen and fat into that signature cloudy tonkotsu color.

Nutrition

Calories780
Protein42 g
Fat40 g
Carbs58 g
Fiber2 g
Sodium1850 mg

Estimated per serving

Related Recipes

Yaki Udon Stir-Fry

Yaki Udon Stir-Fry

30 min Easy
Premium
Dan Dan Noodles

Dan Dan Noodles

40 min Advanced
Free
Classic Beef Bolognese Lasagna

Classic Beef Bolognese Lasagna

195 min Advanced
Free
Trofie al Pesto Genovese

Trofie al Pesto Genovese

40 min Medium
Premium