In the hill towns of Umbria, porchetta vendors set up in the morning and sell until the pig is gone. There is no menu. There is pork, bread, and a knife. You point, they slice, you eat standing up. This is the origin of fast food, and it puts everything that came after to shame.

Umbrian porchetta differs from the famous version of Ariccia in one critical way: wild fennel instead of rosemary. The fronds, seeds, and pollen of finocchietto selvatico grow everywhere in the Umbrian hills, and they perfume the meat with an anise sweetness that rosemary cannot match. The old norcini, the pork butchers of Norcia, also added a small amount of the pig's liver to the stuffing. Not enough to taste distinctly, but enough to add depth and bind the aromatics to the fat.

Making porchetta at home requires commitment. You need a full day for seasoning, overnight resting, and hours of slow roasting. But the reward is a crackling skin shattered like glass and meat so tender it barely needs a knife. The sandwich is simply a delivery mechanism for this perfection.