For best results start with chilled fruit. Cut all fruit into even sized chunks and put into a mixing bowl.
Reserving some chopped peanuts for garnish, mix the remaining sauce ingredients together and taste. If you don't like things too spicy, start with less chilli flakes and sambal, adding more to taste. You may also like to add more lime juice. Keep in mind that the overall effect will be less spicy once it's diluted by the fruit salad.
Combine fruit and sauce in the mixing bowl, then tip out onto a serving platter or bowl. Garnish with reserved peanuts, and a little extra chilli flakes, if you like.
Serve with toothpicks or forks to pick at the fruit salad while enjoying an ice cold drink alongside.