Agnello al Forno con Patate — Roast Lamb with Potatoes (Molise)

Ingredients

• 1.8–2 kg leg or shoulder of young lamb (agnello), brought to room temperature before roasting
• 1 kg waxy potatoes, quartered; Charlotte, Roseval or new potatoes
• 2 medium white onions, sliced
• 1 whole head garlic, cloves separated, unpeeled; plus 4 cloves peeled and sliced into slivers for scoring the meat
• 4 sprigs fresh rosemary, 2 sprigs broken into small pieces for inserting into the meat; 2 sprigs laid whole in the pan
• 1 sprig fresh mint, laid among the potatoes
• 200 ml dry white wine
• 100 ml water
• 60 ml extra-virgin olive oil
• to season fine sea salt, applied aggressively
• to season black pepper, freshly ground; applied aggressively

Method

1. 1
   Remove the lamb from the refrigerator at least one hour before roasting; it must reach room temperature throughout. Heat the oven to 200 °C. Score the surface of the joint at regular intervals with a small knife. Press a sliver of garlic and a small piece of rosemary into each cut. Rub the entire surface with olive oil, then season aggressively with salt and pepper. The meat should be visibly coated — the seasoning should feel generous to the point of excess.
2. 2
   In a large, heavy roasting pan lay the quartered waxy potatoes, sliced onion, unpeeled whole garlic cloves, the remaining rosemary sprigs, and the sprig of fresh mint. Pour the white wine and the water into the pan. Drizzle with olive oil and season with salt and pepper. Stir briefly to coat. The pan bottom should be visibly moistened by the wine and water — a dry pan at this stage will scorch the potatoes before the fat has time to render.
3. 3
   Set the lamb on top of the potato bed, fat-side up. Place in the hot oven and roast at 200 °C for 20 minutes. The surface must take on a first blush of gold in this opening blast; if the oven is slow and the lamb still looks pale and damp at 20 minutes, allow a further 5 minutes at temperature before proceeding.
4. 4
   Reduce the oven to 180 °C. Continue to roast, allowing 20–25 minutes per 500 g of meat for medium (pink-centred). Baste every 20 minutes without exception, spooning the rendered lamb fat and wine juices from the pan over the meat and the exposed potato surfaces. This is where the dish lives or dies: basting transfers the rendered fat to the potatoes, building their colour and richness; without it, the potatoes remain pallid and the lamb dries. The basting liquid should be visibly fattened and amber-coloured by the second baste.
5. 5
   Test the lamb by inserting a skewer or thin knife into the thickest part and holding it against the inside of your wrist for three seconds. For medium, the metal should feel warm but not hot. The potato edges visible above the pan liquid should be golden and slightly charred; the undersides yielding when pressed with a spoon.
6. 6
   Remove the lamb from the pan and rest on a board, uncovered, for 15 minutes before carving. Return the potatoes to the oven for the resting period if they need further colour. Do not cover or rest the potatoes — they will lose their crust. The garlic cloves will have roasted to softness inside their skins and may be squeezed at the table.