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Air Fryer Pork Belly (Crispy Crackling)

CrispyAir Kitchen · Updated October 22, 2026 · Air fryer recipes with exact times & temperatures

Crackling is a drying contest before it is a cooking one. Every serious method in the field — salt crusts, vinegar brushes, overnight fridge rests — is really doing one thing: getting the skin bone-dry so the final blast can blister it. This recipe uses the simplest reliable version: salt, air, time, then two temperatures.

Ingredients

• 1½ lb (700 g) skin-on pork belly slab, about 1½ inches thick
• 1½ tsp fine salt, plus extra for the skin
• 1 tsp garlic powder
• 1 tsp five-spice powder or smoked paprika
• 1 tsp white vinegar (for the skin)
• Oil spray

Method

1. Score the skin in lines ½ inch apart, cutting through the rind into the fat but NOT into the meat — cuts into the meat leak juices onto the skin and stop it crisping.
2. Rub the meat side (not the skin) with the garlic powder and five-spice. Salt the skin generously, then refrigerate UNCOVERED overnight, skin up — dry skin is the whole secret of crackling. In a hurry: at least 1 hour, patted very dry.
3. Wipe the salt and any moisture off the skin. Brush the skin with the vinegar and a fresh pinch of salt. Fold foil into a shallow boat under the slab to catch the rendering fat.
4. STAGE 1 — render: air fry at 300°F (150°C) for 30 minutes. The fat renders, the meat cooks through gently, and the skin dries further.
5. STAGE 2 — blast: raise to 400°F (200°C) for 20–30 minutes until the skin is blistered and crackled ALL over, rotating once if one side races ahead. Patchy pale skin just needs more blast — do not pull it early.
6. Rest 10 minutes (the crackling firms as it rests), then slice between the score lines and serve immediately — crackling softens as it sits.

Tips that actually matter

• Wet skin is the number-one failure: if the skin goes in damp, no temperature saves the crackling — dry it, then dry it again.
• Pricking the skin all over with a skewer or meat tenderiser (many tiny holes) gives even more blisters.
• Cut into 1-inch cubes instead for burnt-ends style bites: 390°F (200°C) for 20–25 minutes, tossed halfway, sauce in the last 3 minutes.
• Slices instead of a slab: Skin-on slices 1½ inches thick: 400°F (200°C) for 18–22 minutes, skin up the whole time — crackling in half the time, less tender meat.
• Char siu style: Marinate the meat side (not the skin) in hoisin, soy, honey and five-spice for 4 hours; wipe the skin bone-dry before the same two-stage cook.

Why this recipe works

Pork belly crackling is a moisture race run in two halves. The low stage renders fat and cooks the meat gently while the skin — salted and dried overnight — gives up its last water; the high stage then blisters that dry skin before it can re-absorb anything. Two things sabotage it: scores that cut into meat (juice leaks up and steams the rind from beneath) and impatience in the blast stage, where pale patches simply need more minutes. The meat itself is forgiving — belly stays moist far past the safety minimum — so all your attention belongs on the skin.

Variations to try

Flavour directions that suit this category: Chimichurri over anything beef; honey-mustard glaze brushed on pork in the final 3 minutes; a coffee-chilli rub for steak; Italian-herb and Parmesan through meatballs; maple and black pepper over bacon in its last 2 minutes.

What to serve with it

Slice over steamed rice with the resting juices spooned around, or into bao buns with pickled cucumber and hoisin.

Storage & reheating

Fridge 3 days (skin uncovered side up softens — it is best fresh). Reheat at 400°F (200°C) for 6–8 minutes to re-crackle the skin.

Frequently asked questions

Why is my pork belly skin chewy, not crispy?

Moisture, almost always: the skin was not dried long enough, or the scores cut into the meat and leaked juices up. Dry overnight uncovered next time and give the blast stage the full time until every patch has blistered.

Do I need the foil boat?

It catches a lot of rendered fat, keeps the drawer cleaner and stops smoking. Never cover the skin itself with foil — the skin needs direct hot air.

Can I skip the overnight dry?

You can, with a 1-hour salt rest and a very thorough pat-dry, and the crackling will still work — the overnight version is simply more reliable and more evenly blistered.

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