P
Chinese
Siu Yuk (烧肉) — Cantonese Roast Pork Belly: The Crackling Technique
Siu yuk (烧肉, Cantonese roast pork) is one of the glories of Cantonese siu mei (烧味) tradition — a slab of pork belly roasted until the skin puffs and crisps into a brittle, shattering crackling while the meat beneath remains juicy and tender. The technique is distinct from Italian porchetta or British crackling in its greater reliance on air-drying and the high-heat blast used to puff the skin. A well-made siu yuk crackles audibly when pressed and cuts cleanly without shattering — the crackling should be even, uniformly blistered, and paper-thin.
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I
The Market List
The benchmark for each ingredient, and who stocks it near you. Tap a stockist to go straight to the product.
1.2 kg
pork belly
skin on, in one flat slab
Your own market
For the marinade
1 tsp
five spice powder
Not yet stocked in British Columbia
1½ tsp
fine salt
Your own market
1 tsp
sugar
Your own market
2 cloves
garlic
finely crushed
Your own market
1 tbsp
Shaoxing wine
Not yet stocked in British Columbia
¼ tsp
ground white pepper
Your own market
II
The Method
1
Lay the pork belly skin-side up on a clean work surface. Using a metal skewer or fork — not a knife — puncture the skin all over with small, close-set holes. The punctures must not breach into the fat layer beneath; the skin alone is perforated. The surface feels uniformly rough underfingers without any soft, fatty give at the puncture sites.
2
Combine the five spice, salt, sugar, crushed garlic, Shaoxing wine, and white pepper. Turn the belly flesh-side up and rub the marinade thoroughly into the underside and all four sides. Leave the skin completely untouched by marinade. Place the slab skin-side up, uncovered, on a rack and refrigerate for a minimum of 8 hours or overnight. At the end of this period the skin surface is dry and matte to the touch — any sheen of moisture means it is not ready.
3
Heat the oven to 180 °C. Set the pork belly skin-side up on a rack over a roasting tray. Roast for 25–30 minutes. The meat cooks through; the skin sets to a pale, opaque, firm surface that does not flex when the tray is moved.
4
Raise the oven to 240 °C. Continue roasting for 10–15 minutes, watching the skin closely. The skin will puff and blister across its entire surface, lifting into an even, uniformly blistered layer of crackling. The colour is deep golden; any patches turning dark brown signal that the blast must stop immediately.
5
Remove from the oven and rest on the rack for 10 minutes without covering. The crackling continues to crisp as it cools. Press lightly with one finger: a correctly made siu yuk crackles audibly and the skin is paper-thin and brittle. Cut cleanly through the crackling without shattering it; the slices hold their form.
III
Quality Hierarchy
01
Reserve — Heritage-breed pork belly — Berkshire or similar — with a thick, even skin and well-defined fat layer; sourced from a butcher who can confirm the skin has not been scalded, which would impair blistering.
02
Estate — Free-range pork belly from a known farm, with an unscored, intact skin and good fat depth; the surest route to even crackling in a domestic oven.
03
Market — Good butcher-counter pork belly, skin on and untreated; ask that the skin not be scored at the counter, as knife cuts breach the fat layer and cause the rendering fault.
04
House — Supermarket skin-on pork belly; workable provided the skin is fully intact and the overnight air-drying is not shortened — moisture control becomes even more critical at this quality level.
IV
Sensory Tests
◇Touch. After overnight refrigeration the skin surface is completely dry and matte — no tackiness or sheen — before the slab enters the oven.
◇Touch. The punctures from the skewer or fork feel uniformly rough without any soft, fatty give, confirming the fat layer has not been breached.
◇Sight. After the initial 180 °C roast the skin is opaque, pale, and set firm across its entire surface.
◇Sight. During the 240 °C blast the skin puffs and blisters evenly; dark brown patches are the signal to stop.
◇Sound. After resting, light finger pressure on the crackling produces an audible crackle, confirming the skin is paper-thin and brittle throughout.
◇Where it lives or dies. The dish lives or dies at the air-drying stage: any moisture remaining on the skin when it enters the oven converts to steam and prevents the skin from blistering and crisping into crackling.
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VI
What to Pour
The pairing
Baijiu
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