A rich, creamy, and deeply flavorful Japanese pork bone broth ramen, known for its milky texture and umami depth. This recipe guides you to a perfect bowl using either traditional simmering or a pressure cooker.

Tonkotsu Ramen Secrets
A rich, creamy, and deeply flavorful Japanese pork bone broth ramen, known for its milky texture and umami depth. This recipe guides you to a perfect bowl using either traditional simmering or a pressure cooker.
Ingredients
- 3 kg pork femurs and trotters cut into 3-4 inch pieces
- 500 g pork back fat optional
- 50 g ginger sliced
- 1 whole garlic head halved
- 2 green onions white parts roughly chopped
- 5 liter water or enough to cover bones
- 3 tbsp sake optional for broth
- 2 tbsp mirin optional for broth
- 2 tbsp soy sauce optional for broth
- 4 servings ramen noodles fresh or dried
- 4 slices chashu or braised pork belly per serving
- 4 ajitama eggs soft-boiled and marinated
- 1/2 cup scallions thinly sliced
- 4 sheets nori dried seaweed
- 2 tbsp tare shio or shoyu per serving
Instructions
- 1. Prepare Bones: Blanch pork bones in boiling water for 15-20 minutes to remove impurities. Drain and thoroughly rinse bones under cold water, scraping off any remaining scum or blood. This step is crucial for a clean broth.
- 2. Cook Broth (Pressure Cooker Method): Place blanched bones, pork fat (if using), sliced ginger, garlic, and green onion whites into a large pressure cooker. Add 5 liters of water, ensuring bones are covered. Lock the lid and cook on high pressure for 2-3 hours.
- 3. Cook Broth (Traditional Simmer Method): Place blanched bones, pork fat (if using), sliced ginger, garlic, and green onion whites into a very large stockpot. Add 5 liters of water, ensuring bones are covered. Bring to a rolling boil, then reduce heat slightly to maintain a vigorous, rolling simmer. Skim off any foam that rises. Continue to simmer for 10-18 hours, replenishing water as needed to keep bones submerged, until broth is milky white and opaque.
- 4. Strain Broth: Carefully strain the broth through a fine-mesh sieve, discarding all solids. If desired, you can pass it through cheesecloth for an even clearer (though still opaque) result. Season with sake, mirin, and soy sauce to taste.
- 5. Prepare Toppings: While the broth cooks, prepare your desired toppings, such as chashu, ajitama eggs, and slice scallions.
- 6. Assemble Ramen: To serve, warm your ramen bowls. Add about 2 tablespoons of tare (shio or shoyu) to each bowl. Ladle hot Tonkotsu broth over the tare and stir well. Cook ramen noodles according to package instructions until al dente. Drain well and add to the broth. Arrange chashu, ajitama egg, scallions, and nori artfully on top. Serve immediately.
Notes
Maintain a rolling simmer for maximum creaminess. A pressure cooker cuts cooking time to 2-3 hours for similar results. Serve with your favorite toppings like chashu, ajitama eggs, scallions, and nori.
