Prepare the Ingredients: Thinly slice the Thai bird's eye chilies and smash and mince the garlic.
3 Thai bird's eye chilies, 2 cloves garlic
Mix the Sauce: In a small bowl or jar, combine the fish sauce, lime juice, sugar, and water. Stir until the sugar is dissolved.
¼ cup fish sauce, 1 tablespoon lime juice, 1 teaspoon sugar, ¾ tablespoon water
Add Chilies and Garlic: Stir in the sliced chilies and minced garlic. Mix well to ensure the flavors meld together.
Add chopped cilantro and green onions: Optional, but adds more flavor.
1 tbsp green onions, ½ tbsp cilantro
Let it Sit: Allow the Prik Nam Pla to sit for at least 10 minutes before serving to let the flavors mix together.