Shun Heng brand vermicelli 40g. Rice vermicelli is a very fine noodle made of ground rice and used primarily in Asian cooking. It's sold in Asian markets and the Asian foods section of some supermarkets, usually wrapped in plastic. How do you cook vermicelli? Rice vermicelli only need to be soaked in hot water, instead of boiled, before they're ready to use in stir-fries or other dishes. Bring a medium pot of water to a boil, remove the pot from the heat, and add the noodles. Let the noodles soak until they're tender, about 5 minutes. Drain and pat dry.