Slow-Roasted Dry-Aged Pork Belly with Perfect Crackling, Fennel & Apple Sauce
A two-stage roast that delivers shattering amber crackling over spoon-tender, cider-braised flesh — pork at its most triumphant.
There is a particular kind of silence that falls around the table when a pork belly with proper crackling arrives — the pause before the knife comes down, the held breath as it shatters into crisp, molten-edged shards over meat that has been braising in its own fat for three hours. It is one of the most viscerally satisfying moments in British cooking, and it is entirely achievable at home, provided you understand the logic behind two non-negotiable steps: the overnight dry, and the initial blast of maximum heat. This recipe pairs the belly with a cider and fennel braising base that adds fragrance without competing, and a sharp Bramley apple sauce that cuts through the fat with exactly the acidity the dish needs.
Pork belly comes from the underside of the pig — the same section that gives us streaky bacon, only in whole, unseparated form. It is a layered cut: alternating bands of lean muscle and rich, flavoursome fat, covered by the rind that becomes crackling. It is one of the most forgiving and most rewarding cuts in the butcher’s case, provided you give it time. The fat renders slowly from within the layers, basting the meat continuously and producing a tenderness that leaner cuts cannot approach.
What makes our belly different from a supermarket equivalent is the combination of free-range husbandry and a seven-day dry-age. Free-range pigs lead more active lives, developing denser, more flavoursome muscle. The dry-ageing concentrates flavour further and, crucially, draws surface moisture from the rind — pre-drying it in a way that accelerates the crackling process in the oven. When buying pork belly, look for even fat coverage of at least 2cm, skin that is pale and dry rather than damp or wet, and meat showing a deep pink-to-red colour.
- 1.8–2kg free-range dry-aged pork belly, skin scored at 1cm intervals
- 2 tsp flaky sea salt (for the skin)
- 1 tsp fine sea salt (for the underside)
- 1 tsp fennel seeds, lightly crushed in a mortar
- 1 tsp coarsely ground black pepper
- 2 medium onions, halved through the root
- 1 bulb fennel, halved and woody core removed
- 4 cloves garlic, unpeeled
- 150ml dry cider (farmhouse or heritage variety)
- 100ml water or light chicken stock
- 3 Bramley apples (approx. 700g), peeled, cored, roughly chopped
- 25g unsalted butter
- 1 tbsp caster sugar
- Squeeze of lemon juice
- Fine sea salt, to taste
- Dry the skin overnight. The evening before, unwrap the pork belly and place it skin-side up on a wire rack set over a tray. Leave uncovered in the refrigerator overnight. This step is non-negotiable: a dry rind crisps rapidly and evenly; a damp one steams.
- Score and season. Remove the pork from the fridge 1 hour before cooking. Score the skin at 1cm intervals, cutting through the rind but not into the flesh. Rub flaky salt vigorously into every score line. Rub the underside with fine salt, crushed fennel seeds and black pepper.
- Blast at high heat. Preheat oven to 240°C / 220°C fan / Gas 9. Place the belly skin-side up on a rack over a deep roasting tray. Roast 25–30 minutes until the skin is deeply blistered, bubbling, and beginning to turn amber.
- Build the braising base. Reduce the oven to 160°C / 140°C fan / Gas 3. Arrange onion halves, fennel and unpeeled garlic beneath the rack in the base of the tray.
- Add the liquid. Pour dry cider and water into the base of the tray. The liquid must sit just below the bottom of the rack — it must not touch the skin.
- Slow roast. Return to the oven at 160°C for a further 2 hours 30 minutes to 3 hours, until a skewer meets almost no resistance through the thickest part.
- Rest the pork. Lift onto a carving board and leave completely uncovered for 20–25 minutes. Do not tent with foil: steam is the crackling’s greatest enemy.
- Make the apple sauce. Melt butter in a small saucepan over medium heat. Add chopped Bramley apples and sugar, reduce to low. Cook gently 12–15 minutes, stirring occasionally, until completely collapsed and fluffy. Season with lemon juice and salt.
- Make the gravy. Strain tray juices through a fine sieve, pressing the softened vegetables. Skim excess fat. Reheat and taste — deeply savoury and faintly sweet from the fennel.
- Carve and serve. Press firmly with a heavy knife in one decisive motion through the crackling. Cut into generous portions, each wearing a panel of burnished amber crackling. Serve immediately with apple sauce, gravy and sides.
The two-stage method — high heat first, low heat second — is the critical technical move. The initial blast at 240°C drives water explosively from the rind, puffing and blistering the surface into thousands of tiny bubbles that harden into crackling. Once this structure is set, the oven drops to 160°C for the long, slow braising phase.
The long, low roast exploits the properties of collagen — the tough connective protein running through belly fat and between muscle layers. Above 80°C it begins to convert to gelatin; by the time the internal temperature has been above 80°C for two hours, the muscle layers have separated into something extraordinarily soft and yielding. Fennel appears twice — in the spice rub and the braising base — because its anise flavour has a particular affinity with pork fat, amplifying what is already present rather than introducing something new.
No dry cider? A dry white wine (Muscadet or Picpoul) works perfectly. Avoid anything with residual sugar. Bramley apples out of season? A mix of two Granny Smiths and one Cox works well. Gooseberries, just beginning their season in late May, make an exceptional alternative apple sauce fruit.
A bone-in pork shoulder responds beautifully to long roasting on the same principle, but you won’t have crackling. For crackling, there is genuinely no substitute for belly or loin.
Crackling is at its absolute peak within 20 minutes of leaving the oven. This dish is best cooked and served same-day. If preparing ahead, cook the belly the day before, cool completely, press under weights overnight in the fridge, then slice into portions and crisp skin-side down in a dry pan. The apple sauce keeps up to 3 days refrigerated.
- Not drying the skin overnight. A fresh-from-packaging rind is still damp. Wet skin steams rather than crisps. The overnight drying step is the single most impactful thing you can do for crackling quality.
- Letting the braising liquid touch the skin. Pour the cider into the tray base only. Even a small amount of liquid on the rind will prevent the crackling from finishing. The rack exists for this reason.
- Covering the meat to rest. Foil traps steam, and steam undoes crackling. Rest the belly uncovered on a board. It stays warm for 20 minutes without help.
Ask us to score the belly for you at the counter — our knives are heavier and sharper than most kitchen knives, and deep, even scores make the difference between patchy and perfect crackling. If scoring yourself, use a sharp, thin-bladed knife and cut through the rind but stop before the flesh.
Wine: A dry Alsatian Riesling (Trimbach or Hugel) — stone-fruit acidity cuts the fat beautifully. Or a Grüner Veltliner: peppery, clean, brilliant with fennel.
Beer: A dry farmhouse lager or Czech Pils — effervescence and bitterness against crackling.
Non-alcoholic: Dry sparkling apple juice (Belvoir or Chegworth Valley) — tart enough to cut the richness.
Pork belly is rich, so the sides should provide contrast. In late May: Jersey Royal potatoes roasted in goose fat with rosemary; hispi cabbage braised in butter and cider with a pinch of caraway; or spring greens with garlic and a splash of cider vinegar. The Bramley apple sauce is essential. English mustard alongside rounds the table out.
How do I get perfect crackling on pork belly?
Three things matter above all else: dry skin overnight, fine salt rubbed into every score line, and high initial heat (240°C+). The overnight drying step is the single most impactful thing you can do — wet skin steams rather than crisps.
Can I cover pork belly while it roasts?
No. Covering pork belly traps steam, which ruins the crackling. Place the belly on a rack above a tray with liquid in the base — this provides ambient moisture for the meat without the skin ever coming into contact with steam.
What does dry-ageing do to pork belly?
Dry-ageing allows natural enzymes to break down muscle fibres for more tender texture and deeper, nuttier flavour. The rind also loses moisture during ageing, crisping more readily than the wet surface of a freshly butchered belly.
Can I cook pork belly a day ahead?
You can cook it ahead, but crackling softens in the fridge. For best results, roast and serve on the same day. If preparing ahead, press the cooked belly under weights overnight, then slice and crisp individual portions in a hot pan skin-side down before serving.
What sides work best with pork belly in late May?
Lean into sharp and fresh contrasts: Jersey Royal potatoes in goose fat, braised hispi cabbage, spring greens, and the Bramley apple sauce. Avoid heavy, creamy or overly rich sides — the belly provides all the richness the plate needs.
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