water (240 ml) • river prawns or large shrimp • shrimp heads (about 60 ml) • kaffir lime leaves • galangal • lemongrass • Thai red chilies • king oyster mushrooms (about 100 grams) • Thai chili paste (nam prik pao) (about 45 ml) • evaporated milk (120 ml) • coconut milk (120 ml) • fish sauce (60 ml) •