Lomo Saltado (Peruvian-Chinese Beef Stir-Fry with Fries and Rice)

// SUPPLY LIST

// OPERATIONS

1. 1 Cut the beef across the grain into batons about 1.5 cm thick and 6 cm long, and toss with 4 cloves of garlic minced to a paste, the cumin, the black pepper and 1 tsp fine salt. Leave uncovered on a plate at room temperature for 20 minutes to take the fridge chill out of the meat, which is the difference between a sear and a stew, then blot the batons firmly with kitchen paper right before they go in the pan: salt pulls moisture to the surface over 20 minutes, and a wet baton steams instead of browning. Do not wet-marinate in soy sauce, however many recipes tell you to — soy-soaked beef sheds water into the pan and turns grey and grainy, and the sillao belongs in the deglaze at the very end where it can reduce and glaze instead of boil.
2. 2 Cut the potatoes into even 1 cm batons, rinse under cold water for a minute until the water runs clear, then soak in cold water for 15 minutes and drain. Dry them completely in a clean tea towel, pressing hard until no damp patch spreads on the cloth. Surface starch glues the batons together in the fryer, and surface water makes hot oil erupt.
3. 3 Put the rice on now, before any frying starts, so it can steam and then sit while you cook everything else: rinse the 300 g of long-grain rice until the water runs clear, fry it for 1 minute in 1 tbsp neutral oil with the remaining crushed garlic clove in a small heavy saucepan over medium heat, add 450 ml water and 1 tsp salt, bring to a boil, cover and cook on the lowest heat for 15 minutes, then leave covered off the heat for a further 10 minutes and fork through. It is done when the grains are tender, dry and separate and small steam craters pit the surface; it will hold happily covered for another 20-30 minutes. Cooking the rice last is the classic home-kitchen mistake, because it strands the finished fries in a warm oven going leathery while you wait on a pot.
4. 4 Heat the frying oil in a deep, heavy pan at least 20 cm wide and filled no more than halfway, to 150°C/300°F on a probe thermometer. Fry the potatoes in three batches for 5-6 minutes each, letting the oil climb back to 150°C/300°F between batches, until they are floppy and cooked through with no colour at all and a baton crushes easily against the side of the pan. Lift onto a wire rack and rest for at least 10 minutes. This first low fry cooks the interior; skip it and you get chips that are brown outside and raw in the middle, and crowding the pan with more than a third of the potatoes at once crashes the oil temperature so they sit and absorb it instead of cooking.
5. 5 While the blanched potatoes rest, line up your mise en place within arm's reach of the hob: seasoned beef, onion wedges, ají amarillo strips, tomato wedges, coriander, and the soy sauce, vinegar and stock stirred together in one small bowl. The stir-fry itself takes under six minutes from first sear to plate and there is no moment in it where you can leave the pan to go and chop something.
6. 6 Bring the oil up to 190°C/375°F and fry the potatoes again in three batches for 2-3 minutes each, until deep gold, rigid and blistered, and they rattle audibly against the spider when you shake it. Drain on a wire rack, never on paper (paper traps steam and softens the crust), salt immediately, and hold in the oven at 90°C/195°F. Time this so the fries leave the oil no more than 10 minutes before the saltado is done: soggy fries are the single most common failure in a home lomo saltado.
7. 7 Set a 30 cm carbon-steel wok or, better on a domestic hob, a heavy cast-iron skillet over your highest heat for 4-5 minutes with the extractor fan running, until a flicked drop of water skitters and vanishes instantly. Add 1 tbsp oil and swirl it until it shimmers and the first thin wisps of smoke rise, around 220-230°C/430-450°F. Add one third of the beef in a single layer with space between the pieces and do not touch it for 40 seconds, then turn each piece and give it another 25-35 seconds. It should be dark brown on two faces and still red in the centre. Move it to a bowl and repeat twice more with 1 tbsp oil per batch, letting the pan recover for 30 seconds between batches. Tipping all the beef in at once drops the pan below searing temperature and it will boil in its own juices, which cannot be undone later.
8. 8 Add the last tablespoon of oil to the empty pan, still on maximum heat, and throw in the onion wedges. Toss and stir constantly for 60-90 seconds, until the edges are translucent and a few faces have caught and blackened slightly, but the layers still snap when you bite one. Add the ají amarillo strips (or the paste, smeared onto the hot pan surface for 15 seconds to cook out its rawness) and toss for a further 30 seconds until fragrant and just softened. Let the onion go limp here and it will collapse into the sauce later.
9. 9 Add the tomato wedges and toss for 45 seconds and no longer, until they are heated through and slumping at the corners but still holding their wedge shape. Tomato left in the pan past a minute breaks down into sauce, and lomo saltado is a stir-fry with distinct pieces in it, not a stew.
10. 10 Return the beef and every drop of resting juice from the bowl. If using pisco, switch the extractor fan off and keep a lid within reach, pour the pisco around the hot rim of the pan and let it flame off for about 10 seconds, standing well back — a running fan can pull flame up into a greasy duct (or, if you would rather not flambé, simply let it boil away for 20 seconds). Pour in the soy, vinegar and stock mixture, scrape the dark fond off the base with a wooden spatula, and boil hard, tossing, for 45-60 seconds until the liquid is glossy and just clinging to the meat rather than pooling.
11. 11 Take the pan off the heat, scatter in the coriander and toss once, then taste a piece of onion and correct with salt only if it needs it (the sillao does most of the seasoning). Tip in about half the hot fries and toss for 15-20 seconds only, so they pick up juice on the outside while keeping their spine, and keep the rest crisp for the plate. Some Lima kitchens keep all the fries out of the pan and let each person dunk their own, which is a perfectly legitimate choice; what nobody does is let them sit in the sauce while the plates are found.
12. 12 Serve within a minute, onto warmed plates: a mound of hot arroz graneado on one side, the saltado and its juices beside it so they bleed into the rice, and the reserved fries piled on top. It does not rest, it does not hold and it does not reheat, so everyone should already be sitting down. A wedge of lime and a spoonful of ají amarillo salsa on the side are the only additions a Lima table would recognise.

// CLASSIFICATIONS