Singapore Chili Crab

History

Chili crab was born in Singapore in the 1950s, invented by a street-vendor couple, Cher Yam Tian and her husband Lim Choon Ngee, who ran a seafood stall. They had the idea to cook crab in a tomato sauce spiked with chili, originally milder and closer to ketchup than the very spicy versions found today. This story is now documented by Singapore’s culinary heritage bodies as one of the founding tales of the local food scene.

The dish has since become so closely identified with the city-state that it’s often held up as its unofficial national dish. It’s traditionally served with fried mantou, small steamed buns dipped into the thick sauce — sweet, spicy and lightly bound with egg — a ritual fixture at Singaporean seafood restaurants, now carried abroad by the country’s diaspora.

Ingredients — Serves 4

• 2 whole crabs (about 800g-1kg each), cleaned and cut into pieces
• 4 tbsp tomato sauce (or ketchup)
• 2 tbsp chili paste (sambal)
• 3 garlic cloves, 1 piece ginger, minced
• 1 beaten egg
• 1 tbsp cornstarch slurry
• Fried mantou (steamed buns) to serve

The Singapore chili crab recipe, step by step

1. Sauté garlic and ginger in hot oil until fragrant, without letting them burn.
2. Add the chili paste and tomato sauce, and cook 2 minutes, stirring to develop the flavors.
3. Add the crab pieces to the sauce, cover and cook 8 to 10 minutes, turning halfway through.
4. Pour in a little water if the sauce thickens too fast; the shell should cook until bright red.
5. Thicken with the cornstarch slurry, then drizzle in the beaten egg while gently stirring to create thin ribbons.
6. Serve immediately, piping hot, with fried mantou for dipping.

Cooking method

Technique: cooking the crab directly in a reduced sauce, which seeps into the meat through the cracked shell.

Traditional equipment: a deep wok with a lid; a large high-sided skillet works too.

Signs to look for: the shell should turn an even bright red, the sauce coating but still fluid, never set.

Nutrition, per serving

Calculated from the raw ingredient quantities above, divided across four servings.

The protein-to-calorie ratio is the standout figure here. Crab meat is exceptionally lean, and this dish carries almost none of the richness its name might suggest — most of what makes chili crab feel indulgent is the sauce’s texture and the ritual of cracking the shell, not its fat or calorie content. Twenty-seven grams of protein for 175 kcal is a very favourable ratio compared to almost anything else on the atlas.

Whole crabs are sold and served in the shell, but the nutrition calculation here is based on edible crab meat only, estimated at roughly 30% of the whole crab’s purchased weight — the rest is shell, not food. This is an estimate rather than a directly sourced meat-yield figure.

Economic context

Whole crab has never been a cheap protein, which is part of why chili crab reads as a restaurant dish rather than home cooking in most households, despite its street-vendor origins in the 1950s. The sauce ingredients — tomato, chili paste, egg — are inexpensive on their own; the cost of the dish sits almost entirely in the seafood itself.

Source: World Bank / FAO, Food Prices for Nutrition database (Cost and Affordability of a Healthy Diet) v4.0, 2024 data, CC BY 4.0, DOI 10.57966/41AN-KY81. Retrieved 29 July 2026. This figure describes the cost of a healthy diet in Singapore generally — it is not a costing of this specific recipe.

Who this dish suits

And you?

In your opinion, where’s the best place or restaurant to enjoy good chili crab?

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