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Mutton and Lamb Roasts

Mutton and Lamb Roasts

Created by Chef Juliette

Based on No. 1952, Mutton and Lamb Roasts, from Le Guide Culinaire (1907) by Auguste Escoffier

A burnished gigot with a rosy heart, its own juices on the board, and sharp mint at hand: roasting stripped to essentials, scaled from the banquet spit to one home oven.

Main Dishes
French
Easter
Holiday
Dinner Party
20 min
Active Time
1 hr 45 min cook2 hr 50 min total
Yield4 servings

Rôtis de Mouton et d’Agneau (mutton and lamb roasts) teach the first law of roasting: cook the joint to its center, not to a timetable. Dry heat can bronze almost anything, but only a thermometer and a proper rest give you the rosy, juicy slices that make the carving board go quiet.

The original entry assumed a turning spit, a cook free to baste, and banquet joints such as double hind legs or a baron. Its alternate Poëlings (No. 250) assumed a saucier and stock never off the fire. At home, one bone-in half-leg sits neatly on a roasting rack, an instant-read thermometer judges the center, and the broiler takes the salamander’s coloring duty only if needed. The banquet scale is scaffolding and goes; the fierce opening heat, gentler finish, patient rest, and Mint Sauce (No. 136) stay because they are the dish.

You’ll have a darkly burnished joint, a rosy center, and clean meat juices shining across each slice. Take the roast from the oven by temperature, then leave it untouched for twenty-five minutes. That rest is the step that matters most.

Roast mutton and lamb belong to France’s rôtisserie and bourgeois holiday table rather than to one province, with legs and saddles serving family tables while double hind legs and the baron fed grand rooms. The old service hierarchy relegated shoulder to less important menus, although its flavor and generous fat make it excellent home-table meat. The canon’s insistence on Mint Sauce (No. 136), more often associated with Britain, shows how readily French kitchens adopted a sharp accompaniment when it suited the meat; Poëlings (No. 250) remained a variation for home-lamb, not the default treatment.

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Ingredients

bone-in half-leg of lamb or mutton

Quantity

3½ to 4 lb (1.6 to 1.8 kg)

with an even covering of fat

unsalted butter

Quantity

2 tablespoons (30 ml / 28 g)

softened

fine sea salt

Quantity

2½ teaspoons (12.5 ml / 15 g)

freshly ground black pepper

Quantity

1 teaspoon (5 ml / 2 g)

Poëlings (optional)

Quantity

1 complete preparation Poëlings (No. 250)

use only as the separate home-lamb alternative instead of roasting

Mint Sauce

Quantity

½ cup (120 ml / 120 g) Mint Sauce (No. 136)

prepared separately and held at room temperature

Equipment Needed

  • Shallow roasting pan with a fitted rack
  • Instant-read meat thermometer
  • Sharp carving knife and sturdy carving board
  • Small sauceboat

Instructions

  1. 1

    Choose the treatment

    This recipe follows roasting, the source’s preferred treatment for both lamb and mutton. If the menu calls for variation and you are cooking tender home-lamb, reach instead for Poëlings (No. 250) as a complete separate preparation; don’t splice its covered, butter-rich method into this roast, because that produces a different dish. For the roast, take the joint from the cold forty minutes before cooking, pat it thoroughly dry, and score only the fat in shallow diamonds without cutting into the meat.

  2. 2

    Season and bronze

    Heat the oven to 450°F (230°C) conventional or 410°F (210°C) fan. Rub the salt and pepper over every surface, then coat the joint with the softened butter. Set it fat-side up on a rack in a shallow roasting pan and roast for fifteen minutes. This fierce opening heat sets the bronze crust; wet meat or a crowded, deep pan traps moisture and leaves the surface grey.

  3. 3

    Finish by temperature

    Lower the oven to 350°F (180°C) conventional or 320°F (160°C) fan. Baste twice with the butter and rendered fat, working quickly so the oven doesn’t lose its heat. Allow another forty to fifty-five minutes for lamb, or sixty-five to ninety minutes for mutton, but trust the center rather than the clock: remove lamb at 140 to 142°F (60 to 61°C), then confirm it reaches 145°F (63°C) during the rest; take mutton to 145 to 149°F (63 to 65°C). If the crust darkens too quickly, shield it loosely with foil. If the center is nearly ready but the surface remains pale, place it under the broiler, the home salamander, for one or two minutes while watching constantly. Ça se rattrape.

    Insert the thermometer into the thickest meat without touching the bone. Bone conducts heat and gives a falsely high reading.
  4. 4

    Rest without touching

    Transfer the joint to a warm board and tent it loosely with foil, leaving air around the crust. Rest for twenty-five minutes so the heat evens out and the juices settle back through the meat. If the first cut releases a flood of juice, stop carving and wait another five minutes. Ça se rattrape; impatience has not yet ruined the whole joint.

  5. 5

    Carve and serve

    Carve thin slices across the grain, working around the leg bone rather than sawing through it. Mutton especially rewards a thin, clean slice. Spoon the clear resting juices over the meat and bring the Mint Sauce (No. 136) separately in a sauceboat, sharp with vinegar and only barely sugared; each guest should take as much as desired. À table!

Chef Tips

  • A half-leg is the honest scale for four. A whole leg feeds a larger table, while a saddle, baron, or double hind legs belong to a gathering with more carving and more appetites. Shoulder is no lesser meat, whatever the old service hierarchy claimed, but its extra connective tissue asks for slower cooking.
  • Choose lamb for mild, tender meat and mutton for a deeper, more savory roast. Leave an even fat covering on either one. The fat protects the meat, bastes the surface, and carries much of mutton’s character.
  • Mint Sauce (No. 136) belongs beside the roast, not simmered over it. Serve it at room temperature so the chopped mint remains fresh and the vinegar keeps its clean edge.
  • A Cabernet-led Bordeaux suits the sweetness of lamb, while the darker flavor of mutton takes well to a northern Rhône Syrah. Pour generously. La gourmandise n’est pas un péché.

Advance Preparation

  • Salt the joint and leave it uncovered in the refrigerator for up to twenty-four hours. This seasons the meat more evenly and dries the surface for stronger browning; add the pepper and butter shortly before roasting.
  • Prepare the Mint Sauce (No. 136) several hours ahead so the vinegar, sugar, and mint can settle together. Bring it to room temperature before serving.
  • Leftover roast keeps for up to three days in the refrigerator. Slice it cold for a proper supper plate, or warm thick slices gently with a spoonful of the resting juices so the meat doesn’t dry.

Frequently Asked Questions

Nutrition Information

1 serving (about 270g)

Calories
660 calories
Total Fat
43 g
Saturated Fat
19 g
Trans Fat
1 g
Unsaturated Fat
21 g
Cholesterol
230 mg
Sodium
1670 mg
Total Carbohydrates
7 g
Dietary Fiber
0 g
Sugars
6 g
Protein
61 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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