Crush chilies and mortar with a mortar and pestle.
Mix in the dressing made of lime juice, fish sauce, fermented fish sauce, and palm sugar. Add ripe tomatoes plus lime skin to the mix, roughly crushing them.
Toss in the cucumber and any optional vegetables of your choice.
Gently mix all the ingredients one last time, ensuring the flavors are well combined and balanced. Serve immediately.
Notes
Use the nutrition card in this recipe as a guideline.
The best greens for Lao-style cucumber salads are Japanese, English cucumbers, or mini cucumbers.
Cherry tomatoes or small, ripe Roma tomatoes are a great option.