Che Khoai Lang
“Diced sweet potato and tapioca pearls simmered with pandan in coconut milk and palm sugar — a warm Saigon evening sweet.”
Where it comes from
Che khoai lang is one of the simplest Southern home and hawker che — sweet potato is a staple Mekong-delta crop, and pairing it with coconut and palm sugar is delta cooking at its plainest. Unlike the cold layered che ba mau aimed at midday heat, khoai lang is an evening sweet: warm, filling, eaten when the temperature drops and street stalls pull out their burners. Variants substitute taro, cassava, or pumpkin while keeping the coconut-and-pandan base.
On the plate
Orange sweet-potato cubes softened to fork-tender but still cube-shaped sit in a tan coconut broth flecked with translucent tapioca beads. The flesh is mealy-sweet from the inside, salt-coconut-rich on the outside. Pandan gives a faint vanilla-grassy aroma you notice on the second bite. Eat warm from a small bowl, spoon-deep — this is what Saigon hawkers ladle out of metal pots after sundown, sold for the equivalent of a dollar with a metal spoon stuck in the rim.
How it works
Variety matters: orange-fleshed sweet potato (Vietnamese khoai lang or U.S. Garnet) gives the right balance of sugar and starch. Japanese sweet potato or yam will go pasty. Cube size is 2cm because smaller cubes disintegrate at the edges before the centers cook through. Coconut milk goes in last and stays under a low simmer — like all coconut-based che, hard boiling separates the fat and grains the soup.
Mekong-delta evening che — sweet potato is a delta staple, paired with coconut and palm sugar at its plainest. Variety matters: orange-fleshed Vietnamese khoai lang or U.S. Garnet for sugar-starch balance; Japanese sweet potato goes pasty. Cube at 2cm — smaller and the edges blow out before centers cook.
Variations
Khoai lang base (the standard); che khoai mon swaps in taro; che khoai mi uses cassava (chewier); che bi do uses pumpkin; Saigon hawkers like the District 3 stalls on Bàn Cờ run all four out of one cart, ladled into small bowls after sundown for about a dollar.
On the Palate
Ingredients
Serves 4
How it's made
5 steps · Show ↓25 min active · 5 min waiting
How it's made
5 steps · Show ↓- 18 min
Peel 500g orange-fleshed sweet potato (Vietnamese khoai lang or Garnet). Cut into 2cm cubes. Soak in cold water 5 minutes to rinse off surface starch; drain.
- 210 min
Soak 60g small tapioca pearls in cold water 10 minutes. Drain.
- 38 min
Bring 700ml water and 2 knotted pandan leaves to a boil. Add sweet potato; simmer 8 minutes — fork should slide in but cubes still hold shape.
Watch outEnsure the water is at a rolling boil before adding sweet potato to prevent uneven cooking.
- 45 min
Add tapioca pearls and 70g palm sugar. Simmer 5 minutes — pearls turn translucent.
Watch outStir gently to prevent tapioca pearls from sticking together.
- 53 min
Pour in 300ml coconut milk and 1/2 tsp salt. Warm gently 3 minutes — do not boil hard. Discard pandan leaves. Ladle warm into bowls; top with toasted sesame or crushed peanuts.
Watch outAvoid boiling the coconut milk to prevent it from curdling.
