Ut Coi crab noodle soup is a noodle shop in Hanoi that serves crab noodle soup, located on the way to St. Joseph's Cathedral. The noodles are thick and chewy like udon, and the crab broth is thickened with starch and served with crab meat, blood cubes, fish cake, and quail eggs. Diners can share a table alone and eat a quick meal even when busy, and chili paste, pepper, lime, and sauce are added separately. The soup has the fishy smell typical of seafood.