The carré d'agneau (rack of lamb) is the most elegant single roast in the rôtisseur's repertoire — a French-trimmed rack of 8 ribs, the bones scraped clean (manchonnés), the fat cap scored, seared until golden, and roasted to rosé perfection. The French trim is a point of professional pride: using a sharp boning knife, the meat and fat are removed between the rib tips (the last 4-5cm of bone) and the exposed bones scraped absolutely clean with the back of a knife — no fragment of tissue remains. The fat cap is scored in a crosshatch pattern (3mm deep, 1cm intervals) to promote rendering and create visual texture. Season the rack generously with salt and pepper 30 minutes before cooking. Heat a heavy ovenproof pan until smoking, sear the fat-cap side for 2-3 minutes until deep golden, then sear the meat side for 1 minute. Apply a coating of Dijon mustard mixed with minced garlic and herbs (this is the classical persillade crust variation: 2 tablespoons Dijon, 1 clove garlic, 30g fresh breadcrumbs, 20g chopped parsley and thyme, bound with melted butter). Press the herb crust onto the fat cap firmly. Roast at 200°C for 15-18 minutes for medium-rare (52-55°C at the eye of the loin). Rest for 10 minutes — the small mass of the rack means carryover is only 3-4°C. Carve between the ribs into individual cutlets. The eye of the loin should be uniformly pink with a thin brown crust; the herb coating should be golden and fragrant. Serve with the natural jus deglazed with lamb stock and a sprig of rosemary.
French trim to absolute clean bones — this is non-negotiable in classical presentation Score the fat cap in crosshatch for rendering and visual appeal Sear fat-cap side first to develop colour and begin rendering Herb-mustard crust applied after searing — the mustard adhesive keeps the crumbs in place 52-55°C for rosé — lamb dries above 62°C and the delicate flavour coarsens
Interlace two racks fat-side out to form a garde d'honneur (crown roast) for spectacular presentation — the crossed bones resemble a guard of honour salute Cover the exposed bone tips with foil during roasting — they burn easily and the char mars the presentation; papillotes (decorative paper frills) go on for tableside service A rack from milk-fed lamb (agneau de lait) under 3 months old is incomparably tender and sweet — it needs only salt, butter, and 12 minutes in a hot oven
Incomplete French trimming — tissue left on the bones chars, smells, and looks unprofessional Not scoring the fat cap — the fat remains as a thick, chewy layer instead of rendering to a crisp lattice Applying the herb crust before searing — it falls off and burns in the pan Overcooking — rack of lamb is a delicate, mild cut that must be served pink; well-done rack tastes of mutton Not resting — carving immediately releases the juices and the cutlets appear grey instead of rosy
Escoffier, Le Guide Culinaire; Larousse Gastronomique