Homemade Thick Chashu Tonkotsu Ramen

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Master the art of tonkotsu at home with this rich, creamy pork bone broth and melt-in-your-mouth braised chashu pork. A restaurant-quality bowl built from scratch.

↓ The ingredients ↓ The steps

Tonkotsu ramen is the ultimate comfort food, renowned for its opaque, creamy pork bone broth and deep, savory flavor. Achieving that signature silkiness requires patience, starting with a thorough blanching of the bones followed by a long, steady simmer. This recipe pairs that intense broth with tender, soy-braised pork belly, seared to perfection for a smoky finish that completes this classic Japanese noodle bowl.

A bowl of rich tonkotsu ramen topped with thick, seared chashu, a soft-boiled egg, and classic garnishes.
A bowl of rich tonkotsu ramen topped with thick, seared chashu, a soft-boiled egg, and classic garnishes.
Prep45 mins
Cook8 hr
Total8 hr 45 mins
Yield2 servings
DifficultyHard
Calories850 kcal

Ingredients

Instructions

  1. 1Blanch the pork bones
    A large pot filled with pork bones submerged in cold water, ready to be blanched.

    Place the pork bones into a large stockpot and cover with cold water. Bring the water to a rolling boil to draw out any impurities, blood, and odors from the bones. Once boiling, skim off any foam that rises to the top.

    Tip: Starting with cold water is essential for drawing out impurities thoroughly before the actual broth-making process begins.
  2. 2Sear the blanched bones
    Pork bones being seared in a hot, dry wok to develop a roasted flavor base.

    Remove the blanched pork bones from the pot and transfer them to a hot wok. Sear the bones until they are lightly browned on all sides to enhance the depth and richness of the final tonkotsu broth.

    Tip: Make sure the wok is sufficiently hot before adding the bones to get a good char without sticking.
  3. 3Begin the broth base
    Hot water being poured over seared pork bones in a large pot, with steam rising.

    Carefully pour boiling water over the seared pork bones in the cooking pot. Using hot water helps maintain the cooking temperature and immediately begins the process of emulsifying the fats and proteins to create a creamy tonkotsu broth.

    Tip: Pouring hot water instead of cold water helps prevent the temperature from dropping, which keeps the cooking process consistent.
  4. 4Add aromatics to the broth
    An onion, garlic cloves, and ginger slices being dropped into a pot of simmering pork bone broth.

    Add a whole onion, cloves of garlic, and fresh ginger slices into the pot with the simmering bone broth. These aromatics will infuse the liquid with essential savory and spicy notes, balancing the richness of the pork bones.

    Tip: Crush the ginger and garlic slightly before adding to the pot to help release their oils more effectively into the broth.
  5. 5Tie the pork belly
    Hands tightly wrapping a slab of pork belly with cooking twine.

    Take a slab of pork belly and roll it tightly. Secure the roll using kitchen twine, tying it firmly at regular intervals. This ensures the chashu maintains a uniform, compact shape during the long braising process.

    Tip: Tying the meat tightly is crucial for uniform cooking and makes it much easier to slice into clean rounds once chilled.
  6. 6Parboil the pork belly
    Tied pork belly rolling in a pot of boiling water with green onions.

    Place the tied pork belly into a pot of boiling water along with green onions and a splash of cooking wine. Allow it to parboil briefly, which helps to firm up the meat and remove any residual impurities before the main braising step.

    Tip: The cooking wine and green onions help neutralize any strong pork odors during this initial parboiling stage.
  7. 7Braise the pork belly
    Pork belly pieces with aromatics and braising liquid in a stainless steel pot.

    Place the tied pork belly into a pot with onion, ginger, and garlic. Pour in a soy sauce-based braising liquid, ensuring the pork is partially submerged to absorb the flavors during the slow cooking process.

    Tip: Tie the pork belly with kitchen twine to help it maintain its shape while it braises and becomes tender.
  8. 8Slice the braised pork belly
    Close-up of a chefs hand using a sharp knife to slice tender braised pork belly into thick, even portions on a wooden cutting board.

    Carefully slice the tender, braised pork belly into thick, uniform pieces using a sharp knife. Ensure each slice is consistent to provide the perfect portion for the tonkotsu ramen bowl, showcasing the rich, melt-in-your-mouth texture achieved through long cooking.

    Tip: Use a gentle sawing motion with the sharpest knife available to keep the soft, braised meat from crumbling.
  9. 9Sear the chashu
    Two slices of chashu pork being seared with a kitchen torch in a black cast-iron pan.

    Place the sliced chashu pork in a cast-iron pan. Use a kitchen torch to sear the surface of the pork slices directly, creating a caramelized and charred finish that adds a smoky flavor.

    Tip: Keep the torch moving constantly to ensure an even char without burning the meat.
  10. 10Assemble the ramen
    Hot creamy tonkotsu broth being ladled into a bowl over cooked noodles.

    Place cooked ramen noodles into a serving bowl. Carefully pour the hot, prepared tonkotsu broth over the noodles, ensuring they are fully submerged and ready for toppings.

    Tip: Ensure your serving bowl is pre-warmed so the broth stays hot longer while eating.

Storage & Reheating

Refrigerator
2 days
Store broth and prepared chashu in separate airtight containers.
Freezer
1 month
Broth freezes well; thaw overnight in the fridge before reheating.
Reheating
10 min
Bring broth to a gentle simmer on the stove. Reheat chashu slices in the warm broth before serving.

Burn It Off

Running
~80 minutes at a vigorous pace (~11 km/h).
Hyrox
~90 minutes of high-intensity functional training.
Pickleball
~2 hours of active competitive play.

Frequently Asked Questions

Creaminess comes from emulsifying fat and collagen. If your broth is clear, you likely didnt boil it hard enough or for long enough. A vigorous boil is necessary to break down the proteins and fats.
Never skip the blanching step. It is essential to remove blood, impurities, and bone fragments that will cause the broth to taste bitter or off-putting.
Lower room-temperature eggs into boiling water and cook for exactly 6 minutes and 30 seconds, then immediately transfer to an ice water bath to stop the cooking.
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