Gaeng kiew wan is the name for green Thai curry paste. Although there are variations, it's usually made with a combination of green chili peppers, lemongrass, coconut milk, coriander, ginger, cumin, onions, white pepper, palm sugar, garlic, holy basil, and grated kaffir lime peel.

The ingredients are mashed into a paste with a mortar and pestle, and the paste is then used to make spicy green curries that often contain fish, beef, or chicken, eggplants, basil, and even fruit.