Nuoc Mam is one of the most essential recipes in Vietnamese cooking. Nuoc mam is a sweet fish sauce recipe with a little sourness built into it. It is used and partnered with a multitude of Vietnamese culinary dishes that helps bring out the flavor of dishes like Vietnames spring rolls (cha gio), grilled pork and rice (thit nuong), and my all-time favorite pork and mushroom crepes (banh cuon).