Kai Jeow Poo (ไข่เจียวปู)

The Omelette That Became A Star

ไข่เจียวปู splits into three parts: ไข่ (khai), the egg; เจียว (jiao), the technique of frying in hot oil until puffed and golden — the same word in every Thai omelette; and ปู (poo), the crab. There is nothing French about it: no soft fold, no low flame. The egg goes into a wok of very hot oil and balloons.

The dish sat on street corners for generations before 2017, when Jay Fai's shophouse in Bangkok — goggles on, wok blazing — won a Michelin star, and her crab omelette became the single most famous dish in Thai street food. In August 2025 it became news again, when a tourist receipt showing a 4,000-baht charge for one omelette went viral, and Kapook's response was to publish a recipe so anyone could make it at home: 4–5 eggs, picked crab, and a wok of oil.

What the Thai sources agree on is the structure: plenty of oil, eggs beaten until they foam, crab folded in generously, and a golden crust that shatters while the middle stays soft. Everything else — the seasoning, the fluff tricks, the final shape — is a fight worth reading about below.

The Recipe (home version, from Wongnai / ครัวพิศพิไล)

The rolled version (Kapook / Jay Fai style): the same eggs and crab, seasoned with seasoning sauce, poured into oil that is hot but not furious, left to set, then rolled with a spatula — a little reserved beaten egg drizzled along the seam to weld the roll shut. The lump version (TrueID): 4 eggs with water and light soy sauce, the crab stirred in at the end so the lumps stay whole, the omelette shaped in the pan by letting the runny egg flow to the sides, then flipped pan-to-pan and topped with more crab.

The Method

1. The crab. Pick through the meat for shell and drain it hard — Aroifin's rule is that wet, mushy crab makes a heavy omelette, and Wongnai's cook adds the freshness test: a steamed crab should smell sweet; an ammonia smell means it has turned. Blanch briefly in hot water if frozen, then drain.
2. The foam. Beat the eggs with the water, milk, fish sauce and pepper. This is the step every source polices: Pipatpong says the more bubbles in the beaten egg, the fluffier the omelette, and Aroifin adds that eggs straight from the fridge will not puff at all — rest them for an hour first.
3. The oil. Use more than feels reasonable — Aroifin fills half the wok — and get it properly hot, then lower to a medium-high flame. Too little oil, or timid heat, and you have a sad flat fried egg instead of an omelette.
4. The pour. Add the egg in one go and let it set. While it is still liquid, stir gently with chopsticks so the heat reaches the middle — Aroifin's trick for cooking the centre without deflating the puff. GopOpOp then takes two spatulas and shapes the setting egg into a rugby-ball lump; Kapook rolls it; Pipatpong leaves it flat. All three work.
5. The crust. Fry each side until deep gold — crisp outside, soft inside, in every source's words. Drain well on paper, top with extra crab and spring onion, and serve immediately with jasmine rice and sriracha. A hot omelette waits for nobody; steam is the enemy of the crust.

Where Thai Sources Disagree

How Western Versions Get It Wrong

• Treating it as a French omelette. A kai jeow is not folded soft over a low flame. Thai sources fry it in deep, hot oil until puffed and crisp. Make a folded French omelette and you have made a folded French omelette with crab in it.
• Skimping on the oil. A film of oil in a non-stick pan gives you a fried egg, not a kai jeow. The puff is built on oil — Aroifin fills half the wok, and warns the omelette only stays light (not greasy) if that oil is properly hot when the egg lands.
• Crab sticks. Western shortcuts reach for surimi. The Thai sources all use picked real crab, and GopOpOp's freshness test — sweet smell good, ammonia smell bin — assumes you started with the real thing.
• Cold eggs, timid whisking. Eggs from the fridge will not puff (Aroifin), and under-beaten eggs have no bubbles to hold the fluff (Pipatpong). Beat until foamy, then fry.
• Serving it as a lone starter. In Thailand the omelette lands on top of a plate of jasmine rice with sriracha — or folded over rice at the stall. Plated alone with a salad garnish, it loses half its point.

UK Ingredient Notes

• Crab: white & brown crab meat pots at every UK supermarket (Sainsbury's, Tesco, M&S "dressed crab") or fresh picked crab from a fishmonger. Use the white meat; drain and dry it well.
• Fish sauce: Squid or Tiparos brand, in any Thai grocer or the world-foods aisle.
• Seasoning sauce (if following the Kapook version): Golden Mountain, sold at Thai grocers and most Asian supermarkets.
• Sriracha: the Thai original, Sriracha Panich, is milder and more garlicky than the American rooster bottle — both work.
• Eggs: any UK large eggs, but take them out of the fridge an hour before you beat them.

Sources

This recipe is translated from the following Thai-language sources. Where they disagree, we've said so.