Hoisin sauce and nuoc cham are not the same. Nước Chấm is a tangy Vietnamese dipping sauce made with fish sauce, lime juice, sugar, and other ingredients. It is used as a condiment for dishes like spring rolls and banh mi. Hoisin sauce, on the other hand, is a thick, sweet, and savory Chinese sauce made with soybeans, garlic, sugar, and spices. It is commonly used in dishes such as Peking duck and stir-fries. These sauces have distinct flavor profiles and are used in different cuisines and dishes.d dishes.