Samlar Machu is a popular Cambodian dish, both as a stew and a soup. The flavor base is the traditional Cambodian kroeung spice blend that includes lemongrass, galangal, and makrut lime leaves. The combination of tamarind, lime, and fish sauce creates a slightly sour-salty note. Adapt the recipe to your taste with chicken, fish, or tofu, and vegetables of your choice.