Slow-Roasted Shoulder of Lamb: Collagen Conversion

The slow-roasted lamb shoulder appears in virtually every meat-cooking tradition — from French gigot to Turkish kuzu tandır to Moroccan mechoui to this Jerusalem version spiced with baharat and pomegranate. The physical principle is universal: collagen in connective tissue converts to gelatin at sustained low temperature, producing meat that falls from the bone with the pressing of a finger. The spicing is cultural; the collagen chemistry is universal.

Bone-in lamb shoulder cooked at low temperature (160–170°C) for 4–6 hours until the collagen has completely converted to gelatin and the meat pulls from the bone without resistance. The long cook produces a different texture than braising — the meat is dry-roasted but the fat and gelatin keep it moist from within.

Slow-roasted lamb shoulder succeeds through textural drama — the contrast between the caramelised, spiced crust and the falling, unctuous interior. The gelatin converted from collagen gives the meat a richness that lean cuts can never achieve. It asks for acid contrast: pomegranate, preserved lemon, or a sharp herb sauce to cut through the fat.