Although peanut sauce is now popular throughout the world, it originated in Indonesia. Traditionally, it was used to add flavor to grilled skewered meat, such as satays, hence it is also referred to as satay sauce sometimes. Peanut sauce is also used to pour over vegetables, as salad dressing, or as a dipping sauce in Indonesian cuisine. Note that the peanut sauce in this recipe is not a traditional recipe. It is the vegan meal prep-inspired take on this delicious sauce.