Bulyong sauce is a spicy and savory Korean sauce typically used for making buldak, a popular Korean dish consisting of marinated chicken stir-fried with vegetables and served over rice. The sauce is made with a blend of fiery chili paste, soy sauce, garlic, sugar, and other seasonings, resulting in a complex flavor that's both sweet and spicy. It's commonly used as a marinade for chicken or as a dipping sauce for vegetables, meat, or seafood. The sauce is known for its intense spiciness, so it's not recommended for those who cannot handle a lot of heat.