If using an immersion or bullet blender: Add all ingredients into the blending container and blend, starting on low speed and increase gradually, just until there are no more big chunks, but some small bits are still visible.
6 sprigs cilantro, 3 red Thai chilies, 4 cloves garlic, 2 tablespoons fish sauce, 3 tablespoons lime juice, 1 ½ tablespoons palm sugar, ⅛ teaspoon fine grain salt