Sa tế is a rich, umami, and fragrant chili sauce that is commonly made with lemongrass. You're most likely to find it as the sauce that accompanies bún bò Huế (Huế style beef noodle soup). Use it as a dipping sauce by itself or mix with hoisin sauce. Add it to your marinades to elevate the dish. Sa tế is even delicious over a bowl of warm rice. It really is a universal condiment that goes with anything.