Peanut sauce, satay sauce (saté sauce), bumbu kacang, sambal kacang, or pecel is an indonesian sauce made from ground roasted or fried peanuts, widely used in indonesian cuisine and many other dishes throughout the world.peanut sauce is used with meat and vegetables, adding flavor to grilled skewered meat, such as satays, poured over vegetables as salad dressing such as in gado-gado, or as a dipping sauce.
Source: Wikipedia