Cook times for whole pork belly and burnt ends, the cubing guide, and the glaze finish that makes them disappear fast.
🔥 Build My Pork Belly Plan Free →A whole pork belly slab smokes for 4–6 hours at 225°F until it hits 165°F–195°F internal, depending on the end goal. Pork belly burnt ends take the full slab to 165°F (3–4 hrs), then cube, sauce, and braise another 1.5–2 hours in a covered pan until probe tender at 200°F+.
| Preparation | Weight | Time @ 225°F | Target Temp |
|---|---|---|---|
| Sliced pork belly | 3–5 lbs | 3–4 hrs smoke | 160–165°F |
| Whole slab (skin-off) | 5–8 lbs | 4–6 hrs smoke | 165°F (pre-cube for burnt ends) |
| Burnt ends — smoke phase | 5–8 lbs | 3–4 hrs | 165°F then cube |
| Burnt ends — braise phase | Cubed | 1.5–2 hrs covered | 200–205°F probe tender |
| Burnt ends — set glaze | Cubed | 20–30 min uncovered | Visual — tacky and glossy |
Burnt ends are a 3-phase cook. Each phase builds on the last. Total time: 5.5–7.5 hours.
Smoked pork belly slices are the more hands-off option — smoke the slab, rest, slice, serve. They're rich, smoky, and excellent served on their own or over rice. Think of it as an incredibly flavorful bacon, smoked for hours instead of cured and pan-fried. If you enjoy this style of long-smoked pork, you'll also want to check out our guide to pulled pork cook times and techniques.
Burnt ends are more involved but arguably the most crowd-pleasing thing you can make on a smoker. The extra braising phase tenderizes the fat to the point of dissolving, the sauce caramelizes into a sticky lacquer, and the resulting cubes are soft-edged, sweet-smoky candy. If you've never made them, they should be at the top of your list. They disappear fast — plan on people eating twice as much as you expect.
Pork belly quality varies significantly. Supermarket pork belly is fine, but belly from a butcher or heritage breed source (Berkshire, Duroc) has more intramuscular fat, better flavor, and a texture that handles the long cook beautifully. If you can find it, it's worth the extra cost — especially for burnt ends where the fat rendering is the whole point.
Enter your slab weight and serve time. The planner builds your complete schedule including smoke, cube, braise, and glaze phases.
Plan My Pork Belly →Pork belly is rich enough to handle bold seasoning. A classic approach: coat the flesh side (not skin/fat cap) with yellow mustard as a binder, then apply a generous layer of your rub — brown sugar, smoked paprika, garlic powder, black pepper, and a pinch of cayenne. Let it sit for at least 1 hour, or overnight in the fridge for deeper penetration.
For burnt ends specifically, the braising sauce becomes the dominant flavor in the final phase, so don't overthink the initial rub. A simple sweet-and-savory rub is all you need — the BBQ sauce, butter, honey, and brown sugar in the braise will define the final flavor.
This is where you build the flavor that defines great burnt ends. After cubing, transfer to a foil pan or cast iron and add: 2–3 tbsp butter, a generous pour of your favorite BBQ sauce, 2 tbsp honey or brown sugar, and a splash of apple juice or cider vinegar. Toss the cubes to coat, cover tightly with foil, and return to the pit. The cubes braise in their own fat and the added liquid until the collagen is completely dissolved and the meat is probe-tender.
Apple and cherry are the go-to choices — their mild sweetness pairs naturally with the pork fat and the sweet glaze in the braise phase. Hickory is excellent if you prefer a smokier, more assertive flavor. For burnt ends specifically, a cherry and hickory combination (2:1 fruit to hardwood) builds a beautiful color and a balanced smoke profile that stands up to the sweet sauce without fighting it. For timing adjustments based on your smoker setup, see our cook time by pit type guide.
For burnt ends and most sliced applications, yes — remove the skin. Pork belly skin doesn't soften like fat does in a standard smoke; it turns leathery and rubbery. If you want crispy pork skin, that's a separate cook at high heat (think chicharrones or crackling). For smoking, score or remove it before the cook.
Cut cubes about 1.5 inches on each side — roughly the size of a large marshmallow. Too small and they render down to nothing in the braise phase. Too large and the exterior gets done before the interior fat has fully broken down. 1.5 inches is the sweet spot that's been proven through a lot of trial and error.
Yes. At 250°F the smoke phase shortens by 30–45 minutes and the braise phase stays roughly the same (since you're cooking to probe tenderness, not time). The bark can set slightly faster at 250°F, which some pitmasters prefer going into the braise. No real downside to bumping from 225°F to 250°F on pork belly.
They're done when a toothpick or probe slides into the center of a cube with no resistance — the fat should feel completely dissolved and the texture is soft throughout. If you feel any firmness, cover and give them another 30 minutes. After uncovering for the glaze phase, they're done when the surface is tacky, slightly glossy, and starting to caramelize at the edges. Don't rush the glaze phase — those 20–30 minutes of uncovered heat are what separates good burnt ends from exceptional ones.