Gaeng Massaman (แกงมัสมั่น) — Thai-Muslim Beef Curry with Potato and Peanuts

// SUPPLY LIST

// OPERATIONS

1. 1 Stem the dried chillies, slit each one lengthways and scrape out every seed and scrap of pale inner membrane, then cover them with just-boiled water and soak for 20 minutes until they are leathery and completely pliable with no brittle spots left. While they soak, break the tamarind pulp into 120 ml hot water, mash it with your fingers and leave it 15 minutes, then press it through a sieve, scraping the underside of the mesh, to give about 130 ml of loose tamarind water; discard the fibre and set the water aside, as you will use it in two separate places later. Drain the chillies and squeeze them hard in your fist until no more water runs out: chillies still carrying water make a slack paste that steams instead of frying later, and seeds left in give a gritty texture and push the heat well past where massaman belongs.
2. 2 Dry-roast the spices one kind at a time in a heavy 20 cm skillet over medium-low heat with no oil, shaking the pan constantly — coriander seeds 3 to 4 minutes until they darken a shade, smell of orange peel and a few crack; cumin seeds 90 seconds to 2 minutes until nutty and barely one shade darker; then the seeds from 10 cardamom pods (crack the pods and discard the fibrous husks), the cloves, one cinnamon stick broken into splinters, the mace and the white peppercorns together for 1 to 2 minutes until the cinnamon turns sweet-smelling. Tip each spice onto a cold plate as it is done, cool for 5 minutes, then grind everything to a fine powder and sift through a tea strainer, regrinding the grits; cumin taken even 30 seconds too far turns the entire paste acrid and there is no fixing it afterwards.
3. 3 Roast the aromatics in the same dry pan over medium heat, or directly over a gas flame: the 80 g of sliced shallots and the garlic for 8 to 10 minutes until blackened in patches and soft when squeezed, the galangal and lemongrass for 4 to 5 minutes until they smell toasted and the edges char, the coriander root for 2 to 3 minutes. Wrap the shrimp paste in a small foil parcel and roast it in the pan 3 to 4 minutes a side until it smells savoury and toasted rather than raw and ammoniac. This roasting is the entire point of massaman paste and the thing that separates it from every other Thai curry paste — a paste pounded from raw aromatics tastes sharp and green no matter how long you cook it.
4. 4 Open the coconut milk cans without shaking them and spoon the thick cream off the top until you have 400 ml, setting it aside and keeping the thinner milk beneath it in a separate jug — you need the cream skimmed now because the paste wants a spoonful of it. Pound the paste in a granite mortar, one ingredient at a time and each worked to a smooth pulp before the next goes in: chillies with the salt first for 5 minutes until no fibres remain, then lemongrass, galangal, coriander root, garlic and shallots, roughly 20 to 25 minutes of steady work in total, then beat in the ground spice powder and the roasted shrimp paste. You want about 240 g of dense, smooth, fudge-like paste that smears rather than crumbles. A food processor is now normal in Thai home kitchens and is fine here — blitz for 5 minutes with 2 to 3 tablespoons taken from the reserved thick cream to keep the blades moving, scraping down often, and never add water — but do not substitute a tub of commercial massaman paste, which is chilli and salt with the roasted spices barely present and cannot be rescued by anything you do later.
5. 5 Put the beef into a heavy-based casserole of about 5 L with 600 ml of the thin coconut milk left after skimming, 400 ml water, the second cinnamon stick and the 5 whole cardamom pods you did not grind; the liquid should sit just level with the top of the meat, so add a splash more water if your pot is wide enough that it does not. Bring it to the barest simmer, 90-95°C/194-203°F, where a bubble breaks only every few seconds, skim the grey foam for the first 10 minutes, then cook partly covered for 2 to 2½ hours, turning the beef once or twice, until a skewer slides into a cube with no resistance while the cubes still hold their shape — collagen-heavy shin is still springy at the 90 minute mark, so go by the skewer and never by the clock. Do not brown the beef first — Thai kitchens do not, and the roasted flavour comes from the paste — and never let it boil, which makes shin stringy and splits the coconut milk into oil and curd.
6. 6 While the beef braises, pour the reserved thick coconut cream into a 26-28 cm wok or wide heavy pan over medium heat and cook it, stirring often, for 8 to 12 minutes until it stops looking like smooth white liquid, breaks into visible curd-like grains and clear oil pools at the edge of the pan; this is taek man, cracking the cream, and it is what fries the paste. Light or reduced-fat coconut milk carries stabilisers and will never crack — it simply thickens and then scorches — so use full-fat milk of at least 17% fat.
7. 7 Add all of the paste to the cracked cream and fry it over medium-low heat, stirring more or less constantly, for 8 to 10 minutes until it darkens from bright red-brown to a deep burnished brown, the oil separates out around it a second time, and the raw shallot-and-garlic smell has been fully replaced by warm spice; loosen with a spoonful of the thin coconut milk if it starts to catch. Under-frying the paste is the single most common way home massaman fails — it tastes dusty and raw, and no amount of simmering afterwards will cover it.
8. 8 Scrape the fried paste and every trace of its oil into the beef pot, add the last 200 ml of thin coconut milk, then season with 55 g of the palm sugar, 3 tablespoons of the fish sauce and 100 ml of the tamarind water, deliberately holding back the rest of all three for the final adjustment, and simmer uncovered for 10 minutes until the surface turns glossy and the colour deepens to russet. Taste it now: massaman should land sweet first, then salty, then sour, with the chilli warmth arriving last and low — and if it tastes flat rather than unbalanced, it almost always wants salt from more fish sauce, not more sugar.
9. 9 Add the potatoes and the remaining 250 g of whole peeled shallots, halving any shallot larger than a walnut so they cook evenly, and simmer gently uncovered for 25 to 30 minutes until a knife goes into a potato chunk with no resistance at the centre and the shallots are translucent and collapsing at the edges. Use a waxy potato and hold the pot at a lazy simmer with only occasional bubbles: a floury potato at a rolling boil disintegrates and turns the curry into a thick, cloudy purée. Potato is a comparatively recent arrival in this dish, but it has been standard in Thailand for generations and no Thai cook would leave it out.
10. 10 Stir in the roasted peanuts and cook for a final 10 minutes so they soften slightly and take up the sauce while still giving a little resistance to the tooth — added at the start of the braise they go mealy and disappear. The curry should now coat the back of a spoon and sit about the thickness of double cream; if it is still loose, lift out the beef and potato with a slotted spoon and reduce the sauce over medium heat for 5 to 10 minutes before returning them.
11. 11 Take the pot off the heat and let it stand, uncovered, for 30 minutes, then taste and adjust in 1 teaspoon increments using the tamarind water, palm sugar and fish sauce you held back in step eight; everything reads sharper straight off the stove and the seasoning settles as it rests. A slick of red-orange oil will rise to the surface — that is correct, it holds much of the spice flavour, so stir it back through or spoon it over the plate rather than skimming it away.
12. 12 Serve warm rather than scalding, with plain steamed jasmine rice, never sticky rice, and if you want the traditional southern accompaniment make ajat: cucumber, sliced shallot and a red chilli in a little sweetened rice vinegar, which cuts the richness. Torn roti for dipping is the other honest option. Like every long braise this is better on the second day, so cool it quickly, refrigerate, and reheat gently to 75°C/167°F without letting it boil.

// CLASSIFICATIONS