This condiment is made from a fermented paste of boiled black soybeans, roasted grain, salt, water and Aspergillus wentii molds, to which palm sugar is added.The strong sweet taste is contributed by a generous amount of palm sugar — the sauce may contain up to 50 percent gula merah or gula jawa (palm sugar jaggery). Indonesian sweet soy sauce is often enriched with spices, including star anise, cinnamon, black pepper, coriander and clove.