Uruguayan Mollejas

• Calf sweetbreads (mollejas) 800g (28 oz, about 1 3/4 lb)

  Thymus glands, sold as whole lobes. Substitute: Lamb sweetbreads, same weight.

  How to choose: Pale pink, plump lobes with no dark spots or sour smell; ask the butcher for the thymus, not the pancreas.

  How to prepare: Soak in cold salted water, then peel off the membrane after blanching.

  Required
• Cold water and white vinegar 1 litre (4 cups) water + 30ml (2 tbsp) vinegar

  For soaking the sweetbreads. Substitute: Water with lemon juice instead of vinegar.

  How to choose: Plain tap water is fine.

  How to prepare: Mix the vinegar into the cold water.

  Required
• Coarse salt 8g (about 1 1/2 tsp)

  6 g for soaking, 2 g for the chimichurri. Substitute: Flaky sea salt.

  How to choose: Coarse grains that dissolve slowly.

  How to prepare: Divide into two portions as noted.

  Required
• Extra-virgin olive oil 45ml (3 tbsp)

  15 ml for brushing, 30 ml for the chimichurri. Substitute: A mild olive oil.

  How to choose: A fruity extra-virgin oil; its flavour shows in the chimichurri.

  How to prepare: Divide into two portions as noted.

  Required
• Lemon 1 large, cut into wedges

  30 ml juice for the chimichurri; the rest served as wedges. Substitute: Lime wedges.

  How to choose: Heavy for its size, with bright, unblemished skin.

  How to prepare: Squeeze 30 ml of juice for the chimichurri, then cut the rest into wedges.

  Required
• Flat-leaf parsley 20g (0.7 oz, about 1 small bunch)

  Leaves only, for the chimichurri. Substitute: Half parsley, half coriander.

  How to choose: Bright green, fresh-smelling leaves.

  How to prepare: Wash, dry well and pick the leaves from the stems.

  Required
• Garlic 9g (0.3 oz, 3 cloves)

  For the chimichurri. Substitute: 1 teaspoon garlic powder in a pinch.

  How to choose: Firm cloves with no green sprout.

  How to prepare: Peel and finely mince.

  Required
• Red wine vinegar 15ml (1 tbsp)

  For the chimichurri. Substitute: White wine vinegar.

  How to choose: A clean, sharp red wine vinegar.

  How to prepare: Measure out.

  Required
• Dried oregano 1g (about 1 tsp)

  For the chimichurri. Substitute: 1 tablespoon fresh oregano, chopped.

  How to choose: Fragrant dried oregano.

  How to prepare: Crumble between your fingers.

  Required
• Red pepper flakes 1g (about 1/2 tsp)

  For the chimichurri; adjust to taste. Substitute: A pinch of cayenne pepper.

  How to choose: Bright red flakes, not faded.

  How to prepare: Measure out.

  Optional
• Black pepper, ground 1g (about 1/4 tsp)

  For seasoning the sweetbreads. Substitute: White pepper.

  How to choose: Freshly ground if possible.

  How to prepare: Measure out.

  Optional

Estimated cost: Medium — about $6–8 per serving at home (USD)

info Calf sweetbreads soaked, blanched, pressed flat and grilled crisp over charcoal, served with lemon and chimichurri.

Execution Methodology & Culinary Technique

1. 1

   Soak the sweetbreads

   30 mins Cold water, below 4°C (40°F)

   Put the 800 g sweetbreads in a bowl, cover with 1 litre of cold water, stir in 30 ml vinegar and 6 g coarse salt, and leave to soak for 30 minutes. The soak draws out blood and firms the lobes, which keeps the flavour clean and mild. Drain and rinse them in fresh cold water.

   Change the water once halfway through if it turns very cloudy — clear water at the end means a clean-tasting sweetbread.

   Done when: Lobes pale and firm, soaking water mostly clear.

2. 2

   Blanch and peel

   10 mins Simmering water at 95°C (200°F); sweetbreads to 74°C (165°F)

   Lower the sweetbreads into a pot of gently simmering water — never a rolling boil, which tears them — and blanch for 5 minutes. Lift them out into cold water, then peel away the thin outer membrane and any visible tubes or fat with your fingers or a small knife while they are still warm; the membrane slips off easily at this point and sticks stubbornly once they cool.

   Work while they are warm and keep a bowl of cold water nearby to cool your fingers.

   Done when: Smooth, pale lobes with no membrane, tubes or loose fat left.

3. 3

   Press flat and make the chimichurri

   30 mins Fridge, below 4°C (40°F)

   Lay the blanched lobes on a plate, cover with a second plate and set a heavy pan or a couple of tins on top. Refrigerate for 30 minutes so they set flat and firm. Meanwhile, finely chop 20 g parsley leaves and 9 g garlic, then stir in 30 ml lemon juice, 15 ml red wine vinegar, 30 ml olive oil, 2 g coarse salt, 1 g oregano and 1 g red pepper flakes. Leave the chimichurri to sit for at least 15 minutes.

   Chop the chimichurri by hand — it should be loose and leafy, not a smooth paste.

   Done when: Sweetbreads flat, firm and about 2 cm (3/4 in) thick; chimichurri bright green and fragrant.

4. 4

   Grill over charcoal

   12 mins Hot grill, about 220°C (425°F); centre to 74°C (165°F)

   Build a hot charcoal fire and let it burn down to glowing embers. Brush the pressed sweetbreads with 15 ml olive oil and season with black pepper. Grill for 5–6 minutes per side, turning once, until the outside is deep golden brown with crisp, charred edges and the centre reads 74°C (165°F) on a thermometer. Move them to a cooler spot if the fat flares.

   Do not move them around — leaving each side alone is what builds the crust.

   Done when: Deep golden, crisp outside; hot and creamy inside at 74°C (165°F).

5. 5

   Rest and serve with lemon

   5 mins Serve hot, above 60°C (140°F)

   Rest the mollejas for 2–3 minutes, then cut each lobe into thick slices or serve whole on a warm plate with lemon wedges and the chimichurri on the side. Squeeze lemon over each serving at the table — the acid cuts the richness and is part of the dish, not a garnish.

   Slice just before serving so the crisp crust does not soften on the board.

   Done when: Sliced lobes showing a creamy centre and a crisp golden edge, lemon on the side.

vital_signs Nutritional Physiology & Benefits

Nutrition

Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.

Vitamins & minerals: Vitamin B12 and iron (sweetbreads), vitamin C (lemon, parsley), vitamin K (parsley), vitamin E (olive oil).

restaurant Food Pairings

What to Eat With

To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:

warning Digestive Guardrails

What NOT to Combine

To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:

General information only, not medical advice — consult a doctor for personal dietary decisions.

Who Should Eat It

Who Should Eat

• General adultsA rich, satisfying dinner for most adults; one serving with salad and bread makes a complete plate.
• ChildrenNot recommended for young children — the flavour and texture are unusual, and the dish is very rich.
• ElderlyBest in small portions — half a serving with salad and bread — because sweetbreads are rich and high in purines.
• Pregnant womenEat only freshly cooked and piping hot, from a trusted butcher; offal should be very fresh, and ask your clinician about offal foods during pregnancy.
• Breastfeeding womenFine as an occasional food; keep the portion modest and pair with salad rather than extra bread.
• AthletesAbout 30 g of protein per serving makes it useful after hard training, but it is high in fat and purines — not an everyday choice.
• Weight gainOne serving with bread and salad covers a large share of daily energy and protein needs in one plate.
• Weight lossVery energy-dense and rich, so keep it rare and small — half a serving with a big salad, not a full plate.

Health Conditions — Adjust or Avoid

Conditions

• DiabetesAlmost no carbohydrate, but the richness means portions still matter; ask your clinician about fitting it into your meal plan.
• High blood pressureSodium is about 360 mg per serving, which is modest for a grilled meat — keep the added salt light and ask your clinician if you are on a sodium-restricted diet.
• Kidney diseaseHigh in protein, so people on a kidney diet should keep portions small and ask their clinician before eating it.
• GoutSweetbreads are very high in purines, which can raise uric acid; people with gout should avoid them or eat them rarely, and ask your clinician.
• Stomach issuesThe rich, creamy offal can be hard to digest and may trigger discomfort; eat slowly and in small portions, and ask your clinician if symptoms persist.
• Cardiovascular diseaseHigh in saturated fat and cholesterol, so treat this as an occasional food in a small portion; ask your clinician about your overall pattern.
• Fatty liverVery high in saturated fat, so it is a poor everyday choice for fatty liver; enjoy rarely and in small portions, and ask your clinician for guidance.
• Food allergiesContains beef offal. The chimichurri is free of the common allergens, but anyone avoiding beef should not eat this dish.
• Special therapeutic dietsThis is a high-fat, high-purine, offal-based food; it does not suit low-fat, low-purine or beef-free therapeutic diets — ask your clinician or dietitian before including it.

If you have a medical condition, consult your doctor before changing your diet.

kitchen Storage & Use

Storage & Use

How to store

Cool leftover mollejas quickly and store in a covered container in the fridge; reheat only what you will eat.

In the fridge

2 days for grilled mollejas; the chimichurri keeps 5 days in a sealed jar.

In the freezer

Up to 1 month, wrapped tightly; freeze after blanching and pressing, before grilling, and thaw overnight in the fridge.

How to reheat

Reheat in a hot pan or a 200°C (400°F) oven for a few minutes until hot all the way through, to 74°C (165°F); the microwave makes them rubbery.

Freezing recommended

Yes — after blanching and pressing, before grilling.

Signs it has spoiled

Sour or off smell, slimy surface, grey or green discolouration — discard, do not taste to check.