Buta no Kakuni – Japanese Braised Pork Belly Recipe
225 min
Japanese cuisine taught me that precision matters. These recipes respect the technique but explain every step clearly so you don't have to guess.
Japanese home cooking is not sushi. It is not elaborate kaiseki. It is quiet, precise, and built around a concept called ichiju sansai — one soup, three sides, served with rice.
A Japanese home cook makes miso soup in 10 minutes, simmers teriyaki chicken in one pan, and keeps dashi stock ready as a base for everything.
The defining characteristic of Japanese home cooking is umami — the fifth taste, built through fermented ingredients (miso, soy sauce, mirin), dried ingredients (kombu, bonito flakes, dried anchovies), and slow techniques that extract maximum flavour from minimum ingredients. Master dashi and you master Japanese cooking.
Making dashi: Dashi is the foundational stock of Japanese cooking. It is made by steeping kombu (dried kelp) in cold water, bringing it to just below a simmer, removing the kombu, adding katsuobushi (bonito flakes), and straining after 5 minutes. The result is a clear, intensely savoury stock that forms the base of miso soup, ramen broth, braising liquid, and dipping sauces. Nothing in Japanese cooking substitutes for proper dashi.
Simmering nimono: Nimono is the Japanese technique of simmering ingredients in a seasoned dashi-based broth until the liquid reduces and coats the ingredients in a glossy glaze. Buta no kakuni (braised pork belly) and nikujaga (meat and potato stew) use this technique. The ratio is always dashi as the base, seasoned with soy sauce, mirin, and sake.
Teriyaki technique: Teriyaki is not a sauce from a bottle. It is a cooking method — grilling or pan-frying protein and glazing it repeatedly with a mixture of soy sauce, mirin, and sake as it cooks. The glaze caramelises with each application, building a lacquered, deeply flavoured crust. The ratio is 2 parts soy sauce, 2 parts mirin, 1 part sake.
Cooking Japanese rice: Japanese short-grain rice requires washing until the water runs clear, soaking for 30 minutes, and cooking with a precise water ratio of 1 cup rice to 1.1 cups water. The result is sticky, slightly glossy rice that holds together for eating with chopsticks and absorbs broth without disintegrating.
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Check out my complete guide to Japanese home cooking, dashi technique, pantry essentials, and tested recipes.
READ THE GUIDEDashi is the foundational stock of Japanese cooking — made from kombu and katsuobushi, it provides the umami backbone that makes Japanese food taste distinctly Japanese. Unlike Western stocks that simmer for hours, dashi takes 20 minutes.
It is used in miso soup, ramen broth, nimono braising liquid, noodle dipping sauces, and anywhere Japanese cooking requires liquid. Without dashi the flavour is flat. With it every dish tastes complete.
Sake is dry Japanese rice wine — it removes odours from fish and meat and adds subtle depth to sauces. Mirin is sweet rice wine — it adds sweetness, a glossy finish, and helps sauces caramelise.
They are not interchangeable. Most Japanese sauces use both — sake for depth, mirin for sweetness and gloss.
Yes for most dishes. Soy sauce, mirin, sake, miso, and rice vinegar are available in most supermarkets and on Amazon. The ingredient worth sourcing specifically is kombu and katsuobushi for proper dashi — instant dashi powder works for weeknight cooking but fresh dashi produces a noticeably better result.
Ramen uses thin, springy wheat noodles in a rich, deeply seasoned broth — the broth is the focus and takes hours to develop. Udon uses thick, chewy wheat noodles in a lighter dashi-based broth — the noodles are the focus.
Soba uses thin buckwheat noodles served either cold with dipping sauce or hot in a light broth. Each noodle type has its own sauce ratios, broth construction, and toppings.