Chashu Pork (Marinated Braised Pork Belly for Tonkotsu Ramen) Recipe

This chashu pork (pork belly braised in soy sauce, sake, and mirin) is the perfectly tender addition to your next bowl of ramen.

Chashu Pork (Marinated Braised Pork Belly for Tonkotsu Ramen)

Serious Eats / J. Kenji Lopez-Alt

Recipe Facts

Active: 60 mins
Total: 9 hrs
Serves: 6 to 8 servings

Rate & Comment


  • 2 pound slab of boneless pork belly, skin-on

  • 1/2 cup soy sauce

  • 1 cup sake

  • 1 cup mirin

  • 1/2 cup sugar

  • 6 scallions, roughly chopped

  • 6 whole garlic cloves

  • One 2-inch knob ginger, roughly sliced

  • 1 whole shallot, split in half (skin on)


  1. Lay pork belly on cutting board and roll up lengthwise, with skin facing out.


    Serious Eats

  2. Using butchers twine, tightly secure pork belly at 3/4-inch intervals.


    Serious Eats

  3. Preheat oven to 275°F. Heat 1 cup water, soy sauce, sake, mirin, sugar, scallions, garlic, ginger, and shallot in a medium saucepan over high heat until boiling. Add pork belly (it won't be submerged). Cover with a lid left slightly ajar. Transfer to oven and cook, turning pork occasionally, until pork is fully tender and a cake tester or thin knife inserted into its center meets little resistance, 3 to 4 hours. Transfer contents to a sealed container and refrigerate until completely cool.


    Serious Eats

  4. When ready to serve, remove pork belly and strain broth. Reserve broth for another use (like making ajitsuke tamago). Slice pork belly into thin rounds (it might help to cut it in half lengthwise first).


    Serious Eats

  5. Reheat pork belly slices in soup broth with noodles and other garnishes. Alternatively, heat a small amount of reserved broth in a skillet and heat pork slices in broth until hot or reheat with a blowtorch, charring its surface. Serve.


    Serious Eats

Special equipment


This Recipe Appears In

Nutrition Facts (per serving)
378 Calories
24g Fat
8g Carbs
27g Protein
Show Full Nutrition Label Hide Full Nutrition Label
Nutrition Facts
Servings: 6 to 8
Amount per serving
Calories 378
% Daily Value*
Total Fat 24g 31%
Saturated Fat 9g 44%
Cholesterol 95mg 32%
Sodium 328mg 14%
Total Carbohydrate 8g 3%
Dietary Fiber 0g 1%
Total Sugars 7g
Protein 27g
Vitamin C 1mg 3%
Calcium 57mg 4%
Iron 1mg 7%
Potassium 317mg 7%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)