Hoi Lai Pad Horapa

Thai stir-fried clams with Thai basil, roasted chilli paste, and fish sauce in the Rattanakosin tradition

Origin: Bangkok, Thailand

From the journey of Basil.

Thailand's three culinary basils occupy distinct gastronomic territories, and it is Thai basil, horapa (Ocimum basilicum var. thyrsiflora), that defines the seafood kitchen of Bangkok and the central plains. With its purple-tinged stems, compact leaves, and an anise-liquorice flavour that sweet basil never achieves, horapa can withstand a few seconds of wok heat without losing its character, making it ideal for flash-stir-fried shellfish where krapao (holy basil) would wilt too quickly. Hoi lai pad horapa is one of Bangkok's canonical street dishes: clams cooked at furious heat with roasted chilli paste, fish sauce, and oyster sauce, the basil added in the final ten seconds, its oils blooming in the scorching wok before the entire dish is plated in an instant. At its best, eaten at a roadside shophouse in Bangkok at midnight, with the wok still smoking and a cold Singha on the table: it is one of the most precisely constructed dishes in any cuisine.

Ingredients

Stir-fry

600 g fresh clams (hoi lai or vongole), scrubbed and soaked in salted water 30 mins to purge
1.5 cups loosely packed fresh Thai basil (horapa) leaves
4 garlic cloves, finely chopped
3 bird's eye chillies, sliced
3 tbsp neutral oil

Sauce

1.5 tbsp roasted chilli paste (nam prik pao)
1 tbsp oyster sauce
1 tbsp fish sauce
1 tsp light soy sauce
0.5 tsp white sugar

Method

Drain and rinse the purged clams. Discard any that are open and do not close when tapped. Mix all sauce ingredients together and set aside. Have everything ready: this dish takes less than 8 minutes total.
Heat a wok over the highest possible flame until smoking. Add oil. Add garlic and chillies and stir-fry for 20 seconds until golden.
Add all the clams at once. Toss immediately. Add the roasted chilli paste and stir to coat the clams.
Pour in the remaining sauce. Continue tossing and stir-frying. Within 2–3 minutes, the clams will begin to open. As each one opens, it is done.
The moment all (or nearly all) clams are open, remove from heat. Add the Thai basil leaves and toss: 10 seconds of residual heat is enough to wilt them perfectly.
Transfer immediately to a plate. Serve with jasmine rice.

Notes

Nam prik pao (roasted chilli paste) is the essential ingredient here: it adds a smoky, savoury depth that no substitute quite replicates. It is available at any Thai or Southeast Asian supermarket. The dish also works well with mussels or mixed shellfish.

The Gastrographer

Name: Hoi Lai Pad Horapa
Prep time: 15 min
Cook time: 8 min
Total time: 23 min
Yield: 2
Cuisine: Thailand
Ingredients: 600 g fresh clams (hoi lai or vongole), scrubbed and soaked in salted water 30 mins to purge; 1.5 cups loosely packed fresh Thai basil (horapa) leaves; 4 garlic cloves, finely chopped; 3 bird's eye chillies, sliced; 3 tbsp neutral oil; 1.5 tbsp roasted chilli paste (nam prik pao); 1 tbsp oyster sauce; 1 tbsp fish sauce; 1 tsp light soy sauce; 0.5 tsp white sugar

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Journey Point Map Key

Ingredient originTrade or transit route

Became a culinary stapleColonial / trade control