Samlor Ktis — Coconut Lemongrass Soup with Lake Fish
សម្លខ្ទិះ
A gentle coconut-and-lemongrass soup of the Tonlé Sap: freshwater fish and pineapple simmered in kroeung-scented coconut cream, sour-sweet and soothing.
By Cambodian Cookbook Kitchen · June 22, 2026
សៀមរាប Siem Reap & AngkorLongvek & Oudong era, 1431–1863
- Prep
- 25 min
- Cook
- 30 min
- Serves
- 4
- Level
- Intermediate
Samlor ktis is the soft-spoken cousin in the Khmer soup family — no fierce sourness, no chilli assault, just freshwater fish and pineapple simmered in coconut cream that has been cracked and fried with lemongrass kroeung. The word ktis names the technique: the thick coconut cream is cooked until it splits and its oil beads out, and that rendered oil becomes the frying medium for everything after. It is a dish of the middle period, when Chinese junks were bringing the wok and soy south to the river capitals and Khmer cooks were folding new methods into old ingredients. Around the Tonlé Sap it became a way to make the lake's endless fish feel gentle and rich, a Sunday soup rather than a weekday one.
The whole dish turns on that first step. Skip the cracking and you get something creamy but flat; render the cream properly and fry the kroeung in its oil, and the base gains a toasted, nutty depth that carries the rest. Pineapple keeps the richness honest with its sweet-sour bite, cherry tomatoes go in late so they hold, and the fish is poached at a whisper of a simmer so it stays in generous pieces. Torn Thai basil and sawtooth herb at the end lift the whole bowl. It is comfort food in the truest sense — the soup you make when you want the lake to taste like kindness — and it asks only that you not rush the coconut.
Crack the coconut cream first — simmer it until the oil beads out — then fry the kroeung in that oil. That single step is the difference between rich and merely creamy.
ពាក្យពីចុងភៅ · A word from the kitchen
Ingredientsគ្រឿងផ្សំ
Serves 4
០ of ១១ gathered
Optional group name
Methodវិធីធ្វើ
Step 1: Crack the coconut cream
Simmer the thick coconut cream alone over medium heat, stirring, until it splits and beads with oil, about eight minutes. This rendered coconut oil is the frying medium for the kroeung and the soul of a proper ktis.
Step 2: Fry the kroeung
Add the yellow kroeung to the cracked cream and fry until the raw lemongrass smell turns round and toasty, three or four minutes. Stir in the prahok now so its funk cooks into the base rather than sitting on top.
Step 3: Build the broth
Pour in the coconut milk, season with fish sauce and palm sugar, and add the pineapple and chillies. Simmer ten minutes to marry, then taste for the Khmer balance: salty, sweet, gently sour, coconut-rich but not cloying.
Step 4: Poach the fish
Slide in the fish and tomatoes and poach at a bare simmer until the fish is just cooked, five to seven minutes — hard boiling breaks it up. Kill the heat, tear in the herbs, and serve over rice while it steams.
ឧបករណ៍ · The tools
Equipment
Granite mortar & pestle
ត្បាល់THE Cambodian tool. Kroeung is pounded, never blended — the stone bruises fibre and oil out of lemongrass and galangal in a way a blade only chops. Buy the heaviest one you can lift.
Shop on Amazon →Carbon-steel wok
ខ្ទះFor char kroeung, loc lac, and every fast fry — a well-seasoned wok gets screaming hot and moves food fast, the whole point of a stir-fry. Flat-bottomed for a home stove.
Shop on Amazon →
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Questions from the kitchen
What does ktis mean?
Ktis refers to the thick, oil-cracked coconut cream that defines this family of dishes. The word points you straight at the technique: you render the cream until it splits before anything else goes in. No cracked coconut, no ktis.
Pineapple in a fish soup?
Yes, and it belongs there. Coconut cream this rich needs an acid to keep it lively, and pineapple's sweet-sour bite does that better than lime alone. Green mango or tamarind work in the same role if pineapple is out of season.
Can I use fish sauce instead of prahok?
You can, and it will be good, but prahok gives a rounded, fermented depth that fish sauce alone reaches for and misses. Use both if you have prahok — a little goes far, cooked into the base until it stops announcing itself.
បន្ទាប់ · Cook next