Pat the pork belly dry. Use a paring knife to poke the skin all over about every inch, being careful not to cut into the meat. Sprinkle 1 teaspoon of salt over the skin and let it sit for 10-15 minutes while the oven preheats to 325°F.
Make the herb rub:
Add garlic, rosemary, sage, thyme, and lemon zest to a food processor. Pulse until finely chopped (20-30 seconds), or chop by hand. Transfer to a bowl and stir in crushed red pepper, remaining 2 teaspoons of salt, and black pepper.
Season the meat:
Pat the pork belly dry again. Flip it skin-side down and score the meat in a crosshatch pattern about ½ inch deep. Rub the herb mixture evenly over the meat, pressing it into the cuts.
Roll and tie:
Roll the pork belly into a tight log, skin-side out. Secure it with butcher's twine every 1 to 1½ inches. Place it seam-side down on a wire rack set over a rimmed baking sheet.
Roast:
Bake uncovered for 2½ to 3 hours or until the internal temperature reaches 170°F.
Crisp the skin:
Remove the porchetta from the oven. Increase oven temperature to 450°F. Return the porchetta and roast for 15-20 minutes until the skin is crispy.
Rest and serve:
Let the porchetta rest uncovered for 10-15 minutes. Remove twine, then slice into ½ to 1-inch-thick pieces using a serrated knife. Serve warm.
Notes
🥡 STORAGE
Store leftovers in an airtight container in the fridge for up to 5 days.
For best texture, keep the skin side up to prevent sogginess.
♨️ REHEATING
Microwave: Heat in 30-second intervals until warmed through.
Oven: Bake at 350°F for 10-15 minutes.
Air fryer: Reheat at 400°F until hot and skin is crisp again.
Skillet: Sear the slices skin-side down in a dry skillet until they are warmed and crispy.
❄️ FREEZING
Freeze whole or sliced portions tightly wrapped in foil and placed in a freezer-safe bag for up to 2 months.
Thaw overnight in the fridge before reheating.
💡 TIPS FOR BEST RESULTS
Use an evenly thick pork belly for easier rolling and even cooking.
For crispier skin, let the pork belly sit uncovered in the fridge overnight before roasting.
Let the rolled porchetta rest at room temperature for 1-2 hours before baking for more even cooking.
🍳 ALTERNATE COOKING METHODS
Smoker: Smoke at 275°F until internal temp reaches 170°F, then crisp in a 450°F oven.
Grill (indirect heat): Cook on a covered grill using indirect heat, then finish over direct heat to crisp the skin.
Convection oven: Use convection mode to reduce roasting time slightly and improve skin crispness.
♻️ LEFTOVERS
Make porchetta sandwiches with crusty rolls, arugula, and mustard aioli.