Chashu Pork (Japanese Rolled Braised Pork Belly for Ramen)
Quick answer
Chashu pork takes its name from Cantonese char siu but is an entirely distinct preparation that evolved within Japanese ramen culture.
What makes this special
- Chashu Pork consists of rolled and tied pork belly braised in soy sauce for traditional ramen toppings.
- Rolling and tying the belly creates the spiral fat-and-lean cross-section of proper chashu
- 1.5 to 2 hours of low-heat braising converts connective collagen to silky gelatin
Key ingredients
Core cooking flow
- 1 Pat 500g pork belly dry, then roll it tightly with the grain so there are no loose gaps.
- 2 Heat a pan well over medium-high heat and coat it with a thin layer of oil.
- 3 Lower the heat and add 100ml soy sauce, 80ml mirin, 80ml sake, 2 tbsp sugar, and 200ml water.
Chashu pork takes its name from Cantonese char siu but is an entirely distinct preparation that evolved within Japanese ramen culture. A thick slab of pork belly is rolled into a tight log, tied at intervals with kitchen twine to hold its shape, then braised low and slow in a mixture of soy sauce, mirin, sake, and sugar. Over one and a half to two hours the connective tissue dissolves into gelatin, transforming the meat from firm to yielding - a texture that barely resists the chopstick and melts against the palate. The braising liquid reduces during cooking and lacquers the exterior in a deep amber glaze that clings without being syrupy. Sliced thin, each piece reveals a cross-section of spiraling fat and lean that is as much a visual signature as a textural one. The fat layers have softened to the point of near-transparency while the lean holds just enough structure to stay in one piece. Although chashu is most associated with ramen, where a few slices crown the bowl, it is equally at home over steamed rice as chashu-don, or sliced cold and eaten alongside beer. The leftover braising liquid is never wasted - soft-boiled eggs soaked overnight in it become ajitamago, the marinated soy eggs that are chashu's natural companion.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Heat
Pat 500g pork belly dry, then roll it tightly with the grain so there are no loose gaps.
Tie it firmly with kitchen twine at 5cm intervals, keeping the log even so it cooks and slices cleanly.
- 2Control
Heat a pan well over medium-high heat and coat it with a thin layer of oil.
Press each of the 6 sides of the pork roll for about 30 seconds, searing until the surface turns deep golden brown.
- 3Control
Lower the heat and add 100ml soy sauce, 80ml mirin, 80ml sake, 2 tbsp sugar, and 200ml water.
Stir once to dissolve the sugar from the bottom, then bring the liquid just to a gentle simmer.
- 4Control
Cover the pot and braise over low heat below 90C for 90 minutes.
Turn the pork every 15 minutes so the braising liquid seasons it evenly and the exposed surface does not dry out.
- 5Prep
Turn off the heat when a chopstick slides into the lean meat with little resistance and the outside looks deep amber.
Let the pork cool in the pot for 30 minutes so the juices settle before slicing.
- 6Season
For the cleanest slices, chill the pork until firm before removing the twine.
Cut it into 7-8mm rounds, then keep the remaining braising liquid for ramen topping sauce or for marinating soft-boiled eggs.
After the steps
Pick a recipe that fits this dish.
Continue with shared ingredients, meal pairings, or a similar method.
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