In a large bowl, add Thai sweet chili sauce, olive oil, rice vinegar and salt. Whisk to combine.
Add cucumbers, red onion, cilantro and peanuts. Gently stir to mix with a large spoon.
Refrigerate for 30 minutes to allow flavors to meld.
Serve cold as a side dish with chicken, pork or beef. Or enjoy on its own with a slice of crusty bread.
Notes
Store: Refrigerate leftovers in an airtight container for 2-3 days. Do not freeze. You can also store peanuts in a pantry and add them right before serving to maintain their crunch.