1. Start by using a sharp knife to score the skin of the pork belly in a crosshatch pattern, being mindful not to cut into the meat itself. This step allows the fat to render out during the cooking process, resulting in that irresistible crispy skin.

2. Next, in a bowl, combine the sea salt, black pepper, red chili flakes, chopped rosemary, thyme, and minced garlic. Mix these ingredients together to form a fragrant herb rub. Generously rub this mixture all over the meat side of the pork belly, ensuring an even distribution of the flavors.

3. Now, it’s time to layer the fennel. Spread the thinly sliced fennel bulb over the meat side and drizzle the lemon juice over the top. This addition of fennel and citrus will add a refreshing brightness to balance the richness of the pork.

4. Carefully roll the pork belly into a tight log, with the skin on the outside. Secure the roll with kitchen twine at 1-2 inch intervals to keep its shape during the cooking process.

5. To ensure your Porchetta with Fennel and Herbs turns out perfectly crispy on the outside and succulent on the inside, it’s essential to follow the proper roasting technique. Begin by letting the rolled pork rest at room temperature for 30 minutes, which will help it cook more evenly.

6. Preheat your oven to 325°F and place the porchetta on a rack in a roasting pan, with the skin side facing up. Roast the pork for about 2.5 to 3 hours, or until the internal temperature reaches 160°F and the skin is beautifully crisp.

7. For that extra-special touch, increase the oven temperature to 425°F during the last 15 minutes of cooking. This high-heat blast will help the skin bubble and crackle, creating a truly irresistible texture.

8. Once the Porchetta with Fennel and Herbs is cooked to perfection, let it rest for 10-15 minutes before slicing. This resting period allows the juices to redistribute, ensuring a moist and flavorful result.

9. When ready to serve, slice the porchetta into thick, generous portions, showcasing the layers of tender pork, crispy skin, and aromatic fennel. Arrange the slices on a platter and consider garnishing with fresh sprigs of rosemary or thyme for an elegant presentation.