To make spicy fruit salad or rujak, first pulverize fried peanuts with a pestle and mortar. Add a small amount of salt, sugar, and chilies. Pour in a quarter glass of water and continue pulverizing to make a smooth, wet peanut paste. Then add petis sauce and mix in cut cucumbers, raw banana, and leafy vegetables. Stir everything together until well combined and flavorful. Finally, serve the rujak petis on a plate.