Malaysian Thai-Malay Tom Yam Fusion Soup

A bold cross-border bowl that unites Thailand's hot-and-sour tom yam with Malaysia's love of fragrant coconut milk, toasted belacan, and torch ginger. The broth stays bright and lip-tingling, but is rounded out with santan and laksa leaf for a creamier, more aromatic finish.

Nutrition Facts

Per serving (estimated)

• 320 kcalCalories
• 18 gFat
• 11 gSaturated Fat
• 14 gCarbs
• 3 gFiber
• 6 gSugar
• 26 gProtein
• 980 mgSodium
• 720 mgPotassium
• 140 mgCalcium
• 4 mgIron
• 28 mgVitamin C
• 180 mcgVitamin A

Ingredients

For the aromatic paste

• 2 tablespoons vegetable oil
• 1 teaspoon toasted belacan (shrimp paste), crumbled
• 2 stalks fresh lemongrass, smashed and cut into 2-inch pieces
• 1-inch piece galangal, thinly sliced
• 6 fresh kaffir lime leaves, torn
• 1 bunga kantan (torch ginger bud), thinly sliced
• 8–10 fresh Thai bird's eye chilies, smashed
• 1 teaspoon ground turmeric
• 2 tablespoons tom yum paste

For the broth and main

• 4 cups water or light seafood stock
• 200 g straw mushrooms, halved (or button mushrooms)
• 1 large ripe tomato, cut into wedges
• 500 g large prawns, shell-on, deveined
• 1 cup thick coconut milk (santan)
• 2 tablespoons fish sauce
• 2 tablespoons fresh lime juice (plus more to taste)
• 1 tablespoon palm sugar, grated (or brown sugar)
• 1 small bunch daun kesum (Vietnamese coriander / laksa leaf), leaves picked

For garnish

• Fresh cilantro leaves, a handful
• 1 lime, cut into wedges
• 2 fresh red bird's eye chilies, thinly sliced
• 2 tablespoons crispy fried shallots

Directions

1. Heat the oil in a heavy pot over medium heat. Add the crumbled belacan and stir-fry for about 30 seconds until it smells toasty and aromatic.
2. Add the lemongrass, galangal, kaffir lime leaves, bunga kantan, smashed chilies, and turmeric. Stir-fry for 1–2 minutes until the aromatics release their fragrance.
3. Stir in the tom yum paste and cook another 30 seconds, then pour in the water or seafood stock. Bring to a vigorous boil and let it bubble for 3 minutes to extract the flavors.
4. Add the straw mushrooms and tomato wedges. Simmer for 4–5 minutes until the mushrooms are tender and the tomato begins to break down.
5. Slip in the prawns and cook for 2–3 minutes, just until they turn pink and curl. Do not overcook.
6. Lower the heat to a gentle simmer and pour in the coconut milk. Stir in the fish sauce, lime juice, and palm sugar. Warm through for 2 minutes — keep the heat low so the santan does not split or curdle.
7. Taste and adjust the balance: more fish sauce for salt, more lime for sour, more chili for heat. Remove from the heat, scatter in the daun kesum leaves, and let them wilt in the residual heat.
8. Ladle the soup into warm bowls, making sure each gets a good share of prawns and mushrooms. Top generously with cilantro, sliced chilies, crispy shallots, and a lime wedge on the side. Serve immediately with steamed jasmine rice or flat rice noodles.

Cook’s Notes

• Toast the belacan over an open flame or in a dry pan for 20–30 seconds before crumbling — this deepens the umami and removes any raw aroma.
• Add the coconut milk at the very end over low heat and never let it boil hard; violent boiling will split the santan and make the broth greasy.
• For a milder soup, halve the chilies and scrape out the seeds before smashing; for serious heat, leave them whole and add a few extra.
• Bunga kantan (torch ginger) is what gives this fusion its distinctly Malaysian personality — look for it at morning wet markets or specialty grocers.
• Serve with a small saucer of sambal belacan on the side for guests who want to push the Malay-spice angle even further.

More Malaysia Recipes You’ll Love

Craving more flavors from Malaysia? Try these traditional recipes:

• Malaysian Coconut Rice with Sambal and Crispy Anchovies
• Char Kway Teow Stir-Fried Flat Noodles
• Malaysian Curry Laksa Noodle Soup with Coconut and Prawns

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