Pork belly is one of those cuts that rewards a little patience. Cook it too quickly and it can be chewy, but cook it properly in the oven and you’ll get rich, tender meat, beautifully rendered fat, and, if you’re using rind-on belly, crisp crackling on top.
The good news is that pork belly is very straightforward to cook at home. Whether you’re cooking a whole piece, sliced pork belly, or pork belly cubes, the oven does most of the work for you.
In this guide, we’ll walk through how to cook pork belly in the oven, including cooking temperatures, timings, seasoning ideas, and how to get the best results from different types of pork belly.
If you’re mainly looking for crackling, see our guide to how to cook crispy pork belly with crackling.
What Is Pork Belly?
Pork belly comes from the underside of the pig. It is naturally well marbled, with layers of meat and fat running through it. That fat is exactly what makes pork belly so tasty, but it also means the cut benefits from slower cooking.
When cooked properly, the fat gently renders down, the meat becomes tender, and the outside can be finished at a higher heat for crispy edges or crackling.
Best Oven Temperature for Pork Belly
For most pork belly, the best method is:
Start hot, then cook low and slow.
A hot oven at the beginning helps start the crisping process, especially if you are cooking rind-on pork belly. After that, lowering the temperature allows the meat to cook gently and the fat to render properly.
A good basic temperature guide is:
- Start at 220°C / 200°C fan / Gas Mark 7 for 20-30 minutes
- Reduce to 160°C / 140°C fan / Gas Mark 3 and cook until tender
- Finish hot again if you want extra crispness
For rind-on pork belly, this gives you the best chance of tender meat and crisp crackling.
How Long Does Pork Belly Take in the Oven?
Cooking time depends on the size and type of pork belly you are using.
As a rough guide:
- Whole pork belly joint: 2 to 3 hours
- Sliced pork belly: 45 minutes to 1 hour
- Pork belly cubes: 1½ to 2 hours
- Marinated pork belly strips: 35 to 50 minutes, depending on thickness
The key is not just time, but texture. Pork belly is ready when the meat is tender and the fat has softened and rendered down.
How to Cook a Pork Belly Joint in the Oven
This is the classic method for oven-roasted pork belly with tender meat and crisp crackling.
Ingredients
- 1 pork belly joint, rind on
- 1-2 teaspoons sea salt
- Black pepper
- A little oil
- Optional: garlic, fennel seeds, paprika, rosemary, thyme, or your favourite pork seasoning
Method
- Dry the rind - Remove the pork belly from its packaging and pat the rind dry with kitchen paper. For best crackling, leave it uncovered in the fridge for a few hours, or overnight if you have time.
- Score the rind - If the rind has not already been scored, carefully score it with a sharp knife. Try to cut through the skin and fat, but not too deeply into the meat.
- Season well - Rub a little oil over the pork belly, then season generously with sea salt. Make sure the salt gets into the scored rind.
- Start in a hot oven - Preheat the oven to 220°C / 200°C fan / Gas Mark 7. Place the pork belly rind-side up in a roasting tray and cook for 20-30 minutes, until the rind starts to bubble and crisp.
- Lower the heat - Reduce the oven to 160°C / 140°C fan / Gas Mark 3 and cook for a further 1½ to 2½ hours, depending on the size of the joint.
- Rest before serving - Once cooked, remove from the oven and rest for at least 15 minutes before slicing. This helps the meat relax and makes it easier to carve.
How to Cook Sliced Pork Belly in the Oven
Sliced pork belly is ideal if you want individual portions and a shorter cooking time.
Method
- Preheat the oven to 190°C / 170°C fan / Gas Mark 5.
- Pat the pork belly slices dry with kitchen paper.
- Season with salt, pepper, and any herbs or spices you like.
- Place the slices on a baking tray, ideally on a rack so the fat can render away.
- Cook for 45 minutes to 1 hour, turning halfway through.
- For extra crispy edges, turn the oven up for the final 5-10 minutes.
Sliced pork belly works well with simple seasoning, barbecue rubs, Chinese-style marinades, honey and mustard, garlic and herbs, or a sticky glaze added near the end of cooking.
How to Cook Pork Belly Cubes in the Oven
Pork belly cubes are brilliant for slow-roasted dishes, sticky pork belly bites, burnt ends, rice bowls, noodles, or rich casseroles.
Method
- Preheat the oven to 160°C / 140°C fan / Gas Mark 3.
- Season the pork belly cubes with salt, pepper, and your chosen spices.
- Place them in a roasting tray in a single layer.
- Cook for 1½ to 2 hours, turning occasionally.
- Once tender, increase the oven temperature to 220°C / 200°C fan / Gas Mark 7 for 10-15 minutes to crisp the edges.
- Toss with sauce or glaze near the end, if using.
For a sticky finish, try barbecue sauce, honey and soy, maple syrup, sweet chilli, hoisin, or a simple brown sugar and mustard glaze.
How to Get Crispy Crackling on Pork Belly
For crispy pork belly crackling, the main things are:
- Dry the rind properly before cooking
- Score the skin
- Use plenty of salt
- Start with a hot oven
- Do not cover the rind while cooking
- Rest the meat, but avoid covering the crackling tightly with foil
Moisture is the enemy of good crackling, so drying the rind is one of the most important steps. If the pork belly has been sitting in packaging, pat it dry first and give it some time uncovered before cooking.
Should You Cover Pork Belly in the Oven?
Usually, no.
If you want crisp crackling or crispy edges, cook pork belly uncovered. Covering it traps steam, which softens the outside.
However, if you are slow-cooking pork belly cubes in a sauce, casserole, or braising liquid, covering the tray for part of the cooking time can help keep everything moist. You can then uncover it at the end to reduce the sauce and crisp the meat slightly.
How Do You Know When Pork Belly Is Cooked?
Pork belly should be cooked until the meat is tender and the fat has rendered down. If it still feels tough, it usually needs more time.
For a joint, a knife or skewer should slide into the meat easily. For slices or cubes, the meat should be soft, rich, and easy to cut.
Because pork belly is a fatty cut, it is much more forgiving than lean pork. A little extra time in a low oven will usually improve the texture rather than spoil it.
What to Serve with Oven-Cooked Pork Belly
Pork belly is rich, so it works well with sides that cut through the fat. Good options include:
- Roast potatoes
- Mashed potatoes
- Apple sauce
- Braised red cabbage
- Steamed greens
- Rice or noodles
- Pickled vegetables
- Slaw
- Gravy or a sticky glaze
For a Sunday roast, go classic with roast potatoes, seasonal veg, apple sauce, and gravy. For something more relaxed, serve crispy pork belly slices in wraps, bao buns, rice bowls, or with chips and slaw.
Can You Reheat Pork Belly?
Yes, pork belly can be reheated, but it is best done gently.
Reheat in the oven at 160°C / 140°C fan / Gas Mark 3 until hot through. If you want to crisp the outside again, turn the heat up for the last few minutes.
Avoid microwaving if you want to keep the texture, as it can make the fat soft and the crackling chewy.
Can You Freeze Pork Belly?
Yes, pork belly freezes well. You can freeze it raw or cooked.
If freezing raw pork belly, keep it well wrapped and defrost thoroughly in the fridge before cooking. If freezing cooked pork belly, allow it to cool fully first, then portion it and freeze in airtight containers or freezer bags.
For more storage advice, read our guide on how long you can keep meat in the freezer.
Final Thoughts
Pork belly is one of the best cuts for oven cooking. It is full of flavour, good value, and very versatile. The trick is to give it enough time for the fat to render and the meat to become tender.
For a whole pork belly joint, start hot for crackling, then cook low and slow. For slices, roast until golden and crisp at the edges. For cubes, slow cook until tender, then finish hot with a glaze or sauce.
Cook it properly and pork belly is hard to beat.
Fancy cooking pork belly at home? Take a look at our pork belly range, including pork belly slices, pork belly cubes and marinated pork belly.
FAQs
What temperature should pork belly be cooked at in the oven?
A good method is to start pork belly at 220°C / 200°C fan / Gas Mark 7, then reduce the oven to 160°C / 140°C fan / Gas Mark 3. This helps crisp the outside while giving the meat time to become tender.
How long does pork belly take to cook in the oven?
A whole pork belly joint usually takes 2 to 3 hours. Sliced pork belly usually takes 45 minutes to 1 hour, while pork belly cubes take around 1½ to 2 hours.
Do you cook pork belly covered or uncovered?
For crispy pork belly, cook it uncovered. Covering traps steam and can soften the crackling or outside edges.
Why is my pork belly tough?
Pork belly is usually tough when it has not cooked for long enough. It needs time for the fat and connective tissue to break down. Lower the oven temperature and continue cooking until tender.
How do you make pork belly crackling crispy?
Dry the rind, score it, rub with salt, and start the pork belly in a hot oven. Avoid covering the meat while cooking, as steam will soften the crackling.
Can you cook pork belly slices in the oven?
Yes. Pork belly slices cook very well in the oven. Roast them at 190°C / 170°C fan / Gas Mark 5 for around 45 minutes to 1 hour, turning halfway through.
Can you cook pork belly from frozen?
It is best to defrost pork belly fully in the fridge before cooking. Cooking from frozen can make it harder to cook evenly and get the right texture.
