Japanese · Japan

Pork Belly Buta no Kakuni Shanghai-Style Japanese

Buta no kakuni (豚の角煮, 'simmered pork cubes') is one of Japan's most beloved braised preparations — thick cubes of skin-on pork belly slow-braised in a richly sweetened soy-sake-mirin broth until the fat becomes translucent and yielding, the skin falls away from the meat, and the entire piece trembles with collagen-gelatin softness. The dish reflects the influence of Chinese red-braise (hongshao) technique absorbed into Japanese cooking through Nagasaki and Okinawa's historical trade connections with China — indeed, Okinawa's rafute (the Okinawan version of kakuni) represents an even older expression of this Chinese-derived technique using awamori rice spirit and Okinawan sea salt. The defining achievement of well-made kakuni is the texture of the fat: completely rendered of greasy character but retaining its shape — it should melt on the tongue without resistance. The collagen-rich skin contributes gelatine to the braising liquid, which reduces to a thick, lacquered glaze. Japanese kakuni typically includes blanching the pork in boiling water with sake and ginger (shimofuri) to remove impurities and develop a clean flavour before the main braise. The braise itself may take 2-4 hours at low heat. Serving with karashi (Japanese mustard) is conventional — its sharp heat provides essential contrast to the sweet, fatty richness.

ServesFour portions

Total3 hours 30 minutes

Sourced2of 10 in BC

Cook

The Market List

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1.2 kg

pork belly

skin-on, cut into 5 cm cubes

Your own market

For the shimofuri blanch

100 ml

sake

Not yet stocked in British Columbia

30 g

fresh ginger

sliced

Origin · New ZealandPurely Artisan Foods · San Diego →

For the braise

200 ml

sake

Not yet stocked in British Columbia

100 ml

mirin

Not yet stocked in British Columbia

80 ml

soy sauce

Purely Artisan Foods · San Diego →

30 g

sugar

Your own market

300 ml

water

Your own market

15 ml

neutral oil

or rendered pork fat

Not yet stocked in British Columbia

20 g

karashi

Japanese mustard, prepared

Not yet stocked in British Columbia

Each tap is counted, so the stockist sees the demand Provenance sends them.

The Method

Place the pork belly cubes in a pot with the shimofuri sake, sliced ginger, and enough cold water to cover. Bring to a full boil and cook for 10 minutes. Drain and rinse each cube under cold running water. The surface of the meat should be visibly clean — no grey foam, no blood residue.

Pat the blanched pork dry. Heat neutral oil or rendered pork fat in a heavy casserole over medium heat. Brown the pork cubes on all sides until a deep mahogany crust forms. The pan should sizzle steadily throughout — a dull sizzle indicates insufficient heat for Maillard development.

Pour off excess fat from the casserole. Add the braise sake, mirin, soy sauce, sugar, and water. Bring to a gentle simmer. Set an otoshibuta (drop lid) directly on the surface of the liquid and pork. Reduce heat to the lowest possible setting and braise for a minimum of 2 hours, up to 4. This is where the dish lives or dies: sustained low heat is the sole condition under which collagen converts to gelatin and the fat renders to translucence without the muscle fibres toughening — any rolling boil will seize the meat irreversibly. At 2 hours, press a cube with a finger; it should yield and tremble, offering almost no resistance.

Remove the pork carefully and set aside. Raise the heat under the braising liquid and reduce until it thickens to a glossy, lacquered glaze — it should coat the back of a spoon and fall in slow, heavy drops. Watch closely: the high sugar content will scorch if the pan is left unattended.

Return the pork to the casserole and turn each cube to coat thoroughly in the glaze. Allow the pork to rest briefly in the liquid off the heat — the flavour penetrates further as the temperature equalises. The glaze should adhere as a dark, shining coat. Serve with prepared karashi alongside.

III

Quality Hierarchy

Reserve — Heritage breed skin-on pork belly (Berkshire, Kurobuta) with deep intramuscular fat; aged artisan soy sauce; premium honjozo sake used in full for both blanch and braise; freshly milled karashi.

Estate — Butcher-sourced skin-on pork belly with visible fat layering; good-quality junmai sake; genuine hon-mirin rather than mirin-style seasoning; whole karashi powder made fresh.

Market — Supermarket skin-on pork belly; standard ryorishu cooking sake; commercial hon-mirin; prepared tube karashi.

House — Skinless pork belly acceptable only if collagen is supplemented with a sheet of pork skin added to the braise and discarded before glazing; dry sherry in place of sake; prepared English mustard as karashi substitute.

Sensory Tests

◇Sight. After shimofuri, the surface of each pork cube is clean and uniform — no grey or red impurity visible.

◇Sound. During browning, the pan maintains a steady, assertive sizzle confirming contact heat sufficient for Maillard crust formation.

◇Touch. After a minimum of 2 hours braising, a gentle finger-press causes the cube to yield and tremble with almost no resistance — the collagen has fully converted.

◇Sight. The reduced glaze falls from a spoon in slow, heavy sheets and coats the back of the spoon thickly — it is ready to receive the pork.

◇Smell. During final glazing, the aroma shifts from sharp-alcoholic to deep, sweet-caramelised soy — a signal that reduction is complete and the dish is at full flavour.

◇Where it lives or dies. The dish lives or dies at the braise: only a sustained, barely trembling simmer over 2–4 hours converts collagen to gelatin and renders fat to translucence — any rolling boil toughens the meat beyond recovery.

V · Cross-Cuisine Parallels

Chinese Dong po rou: virtually identical preparation — skin-on pork belly braised in sweet soy-wine liquid for extended periods; kakuni is the direct Japanese adaptation of this Song dynasty recipe transmitted through Nagasaki-era Shippoku cuisine. Korean bossam and jeyuk bokkeum: the broader East Asian tradition of transforming cheap, fatty pork cuts through extended slow cooking; bossam achieves a different but equally distinctive result through boiling rather than braising.

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What to Pour

The pairing

Nikka From The Barrel

Nikka Whisky — Miyagikyo Distillery · Miyagikyo — Nikka Distillery

Not yet stocked in British Columbia

Whisky

From British Columbia

Fort Berens Riesling

Fort Berens Estate Winery · Lillooet

Not yet stocked in British Columbia

Wine

Without alcohol

GT's Synergy Organic Kombucha — Gingerade

Not yet stocked in British Columbia

Non-alcoholic

Why each one works is part of membership — Enter · from $49 a year →

The whole pairing

VII · Origin & Lineage

Japan — the technique descends directly from Chinese red-braise (hongshao) tradition, absorbed into Japanese cooking through Nagasaki's Shippoku cuisine and through Okinawa's historical trade contacts with China. The Okinawan form, rafute — prepared with awamori rice spirit — predates standard Japanese kakuni and represents the older Chinese-influenced expression. Both are now recognised as distinct regional Japanese preparations. Tsuji Culinary Institute, Japanese Braising Traditions and Chinese-Influenced Preparations.

Pillar VII

Origin and lineage are part of membership.

Where the dish comes from and how it came to be — on every recipe.

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Sourced through Provenance

The hands behind the plate.

Purely Artisan Foods

San Diego · fresh ginger, soy sauce

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