P
Japanese · Nagasaki
Buta No Kakuni Braised Pork Belly Advanced
Kakuni (角煮, square simmered) is Japan's definitive long-braised pork belly — thick cubes of pork belly braised for 2-4 hours in soy sauce, mirin, sake, and sugar until the fat becomes completely unctuous and the meat is falling-tender. The Nagasaki style (Shippoku ryori cuisine) uses slightly different seasonings with Chinese influence (five-spice sometimes added). The Okinawan Rafute version adds awamori (Okinawan distilled spirit) and darker sugar. The central technique challenge: the fat layer must be completely rendered and become gelatinous (not greasy) while the meat remains intact. Pre-boiling in plain water for 30-60 minutes removes excess fat before seasoning.
‹Swipe for the next dish›
I
The Market List
The benchmark for each ingredient, and who stocks it near you. Tap a stockist to go straight to the product.
For the pre-boil
1.2 kg
pork belly
cut into 5 cm cubes
Your own market
30 g
1
negi (Japanese long onion)
cut into lengths
Not yet stocked in British Columbia
For the braising liquid
120 ml
soy sauce
120 ml
mirin
Not yet stocked in British Columbia
120 ml
sake
Not yet stocked in British Columbia
60 ml
sugar
Your own market
To serve
1 tsp
Japanese karashi mustard
served alongside
Your own market
Each tap is counted, so the stockist sees the demand Provenance sends them.
II
The Method
1
Place the pork belly cubes in a pot and cover with cold water. Add the sliced ginger and negi lengths. Bring to a boil, then reduce to a steady simmer and hold for 30 to 60 minutes. The purpose is twofold: excess fat purges into the water and the protein structure tightens. The water will be visibly cloudy and fat-laden — this is correct. Drain; discard the liquid, ginger, and negi.
2
Return the drained pork to the cleaned pot. Combine the soy sauce, mirin, sake, and sugar in the ratio 1 : 1 : 1 : 0.5 and pour over the pork. Add enough water to just cover. Place an otoshi-buta (drop lid) directly on the surface of the liquid; this keeps the pork submerged and the broth in gentle circulation. Bring to a bare simmer — the liquid should tremble, not boil.
From the canon — Otoshi-buta (falling lid / drop lid) is a small wooden or metal lid placed directly on the surface of simmering food, smaller than the pot's diameter so it r… Otoshi-buta — The Drop Lid Discipline (落とし蓋) →
3
This is where the dish lives or dies. Maintain the barest possible simmer — a full boil will break the cubes apart and render the fat grainy rather than unctuous. Braise for a minimum of 2 to 3 hours, checking periodically. The dish is ready to proceed when the fat layer is completely translucent, jiggles freely when the pot is moved, and a skewer passes through it with no resistance.
4
Remove the pot from the heat and allow the pork to cool entirely in its braising liquid. The pork reabsorbs the seasoned broth as it cools; removing it while hot will cause it to dry. The surface of the liquid will set lightly as the collagen gels — a reliable sign the braise has succeeded.
5
Lift the cooled pork from the liquid and set aside. Pour the braising liquid into a wide pan and reduce over high heat until halved in volume and visibly syrupy. Return the pork cubes to the pan and glaze for 10 minutes over high heat, turning the cubes so each face receives the lacquer. The surface of each cube should be deep mahogany and glossy.
6
Serve immediately, with karashi mustard alongside. The mustard cuts the richness of the rendered fat.
III
Quality Hierarchy
01
Reserve — Kurobuta (Berkshire) pork belly from a named producer: the intramuscular fat distribution is superior, yielding a deeper, sweeter render. Paired with hon-mirin (genuine mirin, not aji-mirin) and premium aged soy sauce.
02
Estate — Free-range pork belly from a traceable regional farm. Genuine hon-mirin used for the braise; quality sake — one that is drinkable — rather than cooking sake with added salt.
03
Market — Good supermarket pork belly with an even, substantial fat layer. Standard brewer's mirin and a reliable soy sauce such as Kikkoman. The result is fully satisfying within the technique.
04
House — Any skin-on pork belly available; cooking sake and aji-mirin permissible. The pre-boil and correct low simmer are now the sole differentiators — technique compensates for ingredient limitation.
IV
Sensory Tests
◇Sight. After the pre-boil, the water is cloudy grey and fat-laden; the pork surface has firmed and lost its raw translucency.
◇Sight. During the braise, the liquid trembles at the surface with occasional lazy bubbles — no rolling motion.
◇Sight. The fat layer turns from opaque white to completely translucent and wobbles visibly when the pot is moved.
◇Touch. A skewer pressed through the fat layer meets no resistance whatsoever; the meat beneath yields but does not crumble.
◇Touch. The cooled braising liquid is lightly set — semi-gelatinous — when touched with a fingertip, confirming collagen conversion.
◇Sight. After glazing, each cube carries a deep mahogany, lacquered surface with no matte patches.
◇Where it lives or dies. The braise must never exceed a bare tremble — a rolling boil breaks the cubes apart and renders the fat grainy, destroying the unctuous texture that defines kakuni.
Pillar V
Cross-cuisine parallels are part of membership.
The dishes this one teaches you, across the cuisines — on every recipe.
Enter · from $49 a year
VI
What to Pour
The pairing
Shochu
From British Columbia
Nothing from British Columbia holds against this yet.
Without alcohol
No pour without alcohol holds against this yet.
Why each one works is part of membership — Enter · from $49 a year →
The whole pairingPillar VII
Origin and lineage are part of membership.
Where the dish comes from and how it came to be — on every recipe.
Enter · from $49 a year
Sourced through Provenance