Ideally, choose homemade chicken broth. If you use a store-bought broth, preferably opt for a ready to serve broth sold in a Tetra Pak, not canned. Flavor the broth with a piece of ginger, one or two whole cloves of garlic and 2 green onions, coarsely chopped. Heat the broth for 10 minutes and remove the aromatics before proceeding with the recipe.