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Ternasco de Aragón Asado

Ternasco de Aragón Asado

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Ternasco de Aragón is recental lamb, older than lechal and made for a hot roast over potatoes, garlic, and white wine, with enough fat to stay juicy while the edges brown.

Main Dishes
Spanish
Special Occasion
Christmas
Comfort Food
25 min
Active Time
1 hr 40 min cook2 hr 20 min total
Yield4 servings

Ternasco de Aragón Asado is Aragón's roast lamb, made with recental lamb: older and meatier than lechal, still young enough to be tender, with the fine fat that keeps it juicy in a hot oven. It belongs to Aragón by the lamb itself, not by a sprinkle of herbs. Potatoes underneath, garlic, white wine, olive oil or a little manteca, and the lamb's own juices. That's the dish.

The method that decides it is the liquid in the pan. You give the potatoes enough wine and water to soften and catch the fat, but not enough to boil the lamb. The top must roast, the bottom must baste. If the pan is dry, the potatoes scorch before the meat is done; if it is flooded, you get boiled lamb with a guilty tan. Keep the liquid shallow and baste now and then. Siempre sale, si lo sigues.

If you can't find IGP ternasco, choose a young bone-in lamb shoulder, not old lamb with a strong smell and not milk-fed lamb so tiny it cooks like another dish. It will taste a little deeper and may need another quarter hour, but the method holds. No hace falta haber pisado España. In my Margin beside this one I wrote only: "poco líquido," little liquid. It saved more roasts than any clever trick.

Ternasco de Aragón belongs to the inland northeast, where sheep have long moved between the Ebro valley, the sierras, and the dry cereal country that feeds them. The protected name refers to recental lamb from Aragonese breeds, older and meatier than milk-fed lechal but still tender, which is why it can take a hot roast and stay juicy. At Christmas and village feasts it is often roasted simply with potatoes, garlic, white wine, and its own fat, a home version of the lamb once taken to the communal or baker's oven.

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Ingredients

bone-in paletillas de ternasco de Aragón IGP

Quantity

2, 650 to 750g each, about 1.4kg total

or 1.4 to 1.6kg young bone-in lamb shoulder

fine sea salt

Quantity

20g

divided

waxy potatoes

Quantity

900g

peeled and sliced 5mm thick

yellow onions

Quantity

250g

sliced 5mm thick

garlic cloves

Quantity

8

4 crushed and 4 left whole

flat-leaf parsley leaves

Quantity

15g

chopped

extra virgin olive oil

Quantity

60ml

manteca de cerdo

Quantity

30g

softened, or use 30ml more olive oil

dry white wine

Quantity

150ml

water

Quantity

150ml

bay leaves

Quantity

2

Equipment Needed

  • Large heavy roasting tin, about 30 by 40cm
  • Mortar and pestle or small bowl for the majado
  • Instant-read thermometer
  • Carving knife

Instructions

  1. 1

    Salt the lamb

    Pat the lamb dry. Rub 14g of the salt over it, working it into the thick meat near the bone, then let it stand at cool room temperature for 45 minutes while the oven heats to 220C. If you have time, salt it uncovered in the refrigerator 4 to 24 hours ahead and bring it out 45 minutes before roasting. Pésalo, no lo adivines; the salt is what seasons the meat all the way to the bone, not just the browned edge.

    Shoulder is the friendliest cut for a home oven. It has enough fat and bone to forgive a few minutes either way, which is more than a lean leg will do for you.
  2. 2

    Make the majado

    In a mortar, pound 4 garlic cloves with the parsley to a rough paste, a majado, the garlic-parsley mash that gives the roast its backbone. Stir in 20ml of the olive oil and the softened lard, or the extra oil if you are not using lard. Smear this over the lamb, especially the top and the cut sides.

  3. 3

    Build the potato bed

    Toss the potatoes, onions, remaining 4 garlic cloves, bay leaves, remaining 40ml olive oil, and remaining 6g salt in a large roasting tin, about 30 by 40cm. Spread them in one loose layer, two at most. Pour the wine and water in at the side of the tin, not over the lamb, then set the lamb on top, flesh side down.

  4. 4

    Roast and turn

    Roast at 220C for 20 minutes, until the first browned patches show. Turn the lamb fat side up, spoon some of the pan juices over it, and lower the oven to 180C. Roast for 45 minutes more, basting every 20 minutes. The pan should have glossy liquid around the potatoes, not a lake; add 50ml water if it looks dry.

  5. 5

    Keep it shallow

    Carry on roasting for 15 to 25 minutes, until the lamb is deep golden at the edges and the meat near the bone reaches 72 to 75C, or a skewer slides in with only a little resistance. This is the step that decides it: the lamb must roast above the potatoes while they drink the wine and fat below. Too much liquid, and you have stew. That is another dish.

  6. 6

    Rest and serve

    Lift the lamb to a warm board and rest it for 15 minutes. If the potatoes are still pale or wet, raise the oven to 220C and return the tin while the lamb rests, until the edges brown and the juices reduce to a glossy spoonful. Cut the shoulders into portions, serve over the potatoes, and spoon the pan juices over everything. Tal como se hace allí.

Chef Tips

  • Buy IGP Ternasco de Aragón if you can. If you can't, choose young bone-in lamb shoulder with pale, creamy fat and a clean smell. Older lamb will be stronger and needs a little longer, so start checking tenderness, not just the clock.
  • Do not drown the tin. The wine and water are there for the potatoes and the pan juices, not to cover the lamb. A shallow pan gives you roasted meat and soft potatoes with browned edges.
  • Use a dry white wine you would drink. If the wine is very sharp, use 100ml wine and 200ml water instead; the roast should taste of lamb first, not of sour grapes.
  • Manteca de cerdo gives the old roast gloss, but olive oil works well and is easier to find. What matters more is good lamb, exact salt, and a hot oven.
  • Serve it with a red Garnacha from Campo de Borja, Cariñena, or Calatayud. The lamb has enough fat for it, and Aragón keeps its own company nicely.

Advance Preparation

  • Salt the lamb 4 to 24 hours ahead and leave it uncovered in the refrigerator; the surface dries a little and browns better.
  • The garlic-parsley majado can be made up to 12 hours ahead and kept covered in the refrigerator. Let it soften before rubbing it on the meat.
  • Slice the potatoes just before roasting so they do not darken. Leftover lamb and potatoes keep for 3 days, covered and refrigerated, and reheat best in a covered dish with a spoonful of water.

Frequently Asked Questions

Nutrition Information

1 serving (about 450g)

Calories
910 calories
Total Fat
58 g
Saturated Fat
21 g
Trans Fat
0 g
Unsaturated Fat
37 g
Cholesterol
175 mg
Sodium
2100 mg
Total Carbohydrates
49 g
Dietary Fiber
6 g
Sugars
5 g
Protein
48 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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