Samlor Machou Yuon

Method

Pound the garlic and chilli together until you have a coarse paste — you want texture here, not a purée. This paste is your cambodian-cuisine flavour base, and the bruising releases aromatic oils that won't develop the same way if you mince them fine.

Heat the stock to a rolling boil and add the garlic-chilli paste directly. It will bloom immediately, turning fragrant and slightly darkened at the edges. Add the tomatoes cut into thick wedges — they need surface area to soften and collapse into the broth, releasing their acidity and body, but large chunks will hold their structure for the 8-10 minutes the soup needs. The stock should simmer hard enough to break the tomatoes down without turning them to pulp.

Meanwhile, slice the cucumber into half-moons about 5mm thick and cut the long beans into 3cm lengths on the bias — the angled cut exposes more surface and cooks faster than straight cuts. Halve the baby aubergine lengthways. Add the beans and aubergine now, giving them the full cooking time to soften. Add the cucumber only in the final 2 minutes — it should remain crisp and cool against the hot broth, a textural contrast that defines the dish. Taste at 8 minutes: the beans should snap slightly when bitten, and the aubergine flesh should yield to a spoon without collapsing.

When the vegetables are just tender, finish with lime juice, fish sauce, and palm sugar in that order. This sequence matters: the acid denatures and tightens the stock slightly, the fish sauce adds depth and umami, and the sugar rounds everything into balance. Stir well and taste. The bowl should be sharp, savoury, and floral all at once.

Tear the mint and coriander leaves roughly — do not chop them fine — and either stir them through the pot or pile them into a small bowl on the side. Most Cambodian cooks let diners add their own herbs, adjusting the freshness and intensity to taste. Either way, serve the soup hot in wide bowls, ensuring each gets a good mix of vegetables and broth.