Argentine grilled veal sweetbreads β cleaned, grilled over hardwood coals until golden and crunchy outside, creamy within. The prized first course of every asado.
Mollejas β veal or beef thymus gland sweetbreads β are the crown jewel of the Argentine asado's first course (the achuras). For the uninitiated, they arrive as an irreversible conversion: crunchy, golden, slightly caramelised on the outside from the heat of the parrilla, with an interior that is impossibly creamy, almost milky, rich without being heavy. They are milder and more delicate than liver, without the iron punch of kidney. In Argentina, mollejas are treated with reverence: they are soaked in cold water to remove any blood, briefly parboiled to firm them for the grill, and then placed directly over hardwood embers for 30β40 minutes, basted with nothing but occasional salt and the camaraderie of patient cooking. The exterior forms a golden crust that crunches like well-cooked chicken skin. They are served with lemon and chimichurri while the larger cuts of beef are still hours from ready. Every parrillero worth their salt knows that mollejas, chorizos, and morcilla must arrive at the table first β they are the price of patience.
Serves 4
Place sweetbreads in a large bowl of cold water with the vinegar. Refrigerate 2β4 hours, changing the water twice, until the water runs mostly clear. This removes blood and produces a cleaner, paler result.
Do not skip the soaking β unsoaked sweetbreads have a stronger, more glandular taste that divides opinion. Soaked mollejas are mild and accessible.
Drain and place sweetbreads in a saucepan with cold salted water. Bring to a boil over medium heat, then simmer 5 minutes. Remove with a slotted spoon and immediately transfer to a bowl of iced water to stop cooking. Pat thoroughly dry.
Wrap blanched sweetbreads in a clean kitchen towel. Place a heavy pan on top. Refrigerate 30 minutes to firm them up and press out excess moisture β this produces a more even crust on the grill.
Build hardwood coals to a medium-hot temperature (hold palm 15 cm away for 2β3 seconds). Clean grill grate thoroughly.
Season sweetbreads generously with coarse salt and sprinkle with dried oregano. Place on the grill directly over coals. Cook without moving for 15β20 minutes until a deep golden crust forms and they release from the grate naturally.
Turn once. Grill the other side 10β15 more minutes until equally golden. The interior should be fully cooked (no pink) but still creamy, not rubbery.
Squeeze lemon over the sweetbreads and serve immediately with chimichurri. They must be eaten hot β they toughen quickly.
Veal sweetbreads (ternera) are milder and more prized than beef sweetbreads (novillo) β source them from a specialist butcher and use within 1 day of purchase.
The blanching step is critical for grill success: raw sweetbreads are too delicate and irregular to grill well; blanching firms them and creates a surface that crisps beautifully.
Resist the temptation to move them on the grill. A good crust requires full contact time β moving them tears the forming crust.
Mollejas a la plancha: cook on a hot griddle pan indoors with a splash of olive oil β equally good, less smoky.
Stuffed mollejas: slit and fill with a mixture of mozzarella and roasted capsicum before grilling.
Best eaten immediately; leftovers toughen significantly. If necessary, refrigerate up to 1 day and reheat under a very hot grill (not microwave) for 4 minutes.
Offal cookery (achuras) is central to Argentine asado culture, rooted in the gaucho tradition of using the entire animal. Sweetbreads appear in Argentine cookbooks from the late 19th century as a premium ingredient. The French and Italian immigrants who settled Buenos Aires brought a refined approach to offal cooking that elevated mollejas from peasant food to the starred first course of the parrilla they remain today.
Sweetbreads are the thymus gland (throat sweetbreads, more delicate and prized) or the pancreas (heart/belly sweetbreads, slightly larger and fattier) of a calf or lamb. Despite the name, they contain no sugar β the term likely derives from Old English 'sweet' (tasty) + 'bread' (roasted meat).
Yes β sweetbreads are a gland, not a muscle, and cook differently from steak. The creamy interior is fully cooked; it just retains a soft, custardy texture. If they're rubbery throughout, they're overcooked.
Specialty butchers, halal butchers (who use the whole animal), and some farmers' markets carry them. Call ahead β sweetbreads must be ordered or specified.
Per serving (200g / 7.1 oz) Β· 4 servings total
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