Sweet soy sauce, sometimes called kecap manis, is a thick dark sauce typically used in Indonesian and Chinese cooking. It can be found in Asian groceries. To make your own, simmer equal parts soy sauce and brown sugar or molasses until thickened. Tamarind concentrate or paste is a thick fruit pulp that is tart, slightly sweet and fruity. It is popular in Indian, Middle Eastern, Asian, African and Latin American cuisines. It is used to flavor dishes, and to make candies, condiments and beverages.