My husband and I love Tom Kha Gai and have tried it at many Thai restaurants. We prefer Thai soup that we can distinctly taste spicy, sour, and sweet flavors. After many attempts, I think that I've finally come up with a really good recipe. I started with a recipe from the "The Best Recipe, Soups and Stews" cookbook and then modified it so that the flavor and ingredients closely match that of a soup that our favorite Thai restaurant serves. Now we can have delicious Tom Kha Gai without having to go out to eat. Part of the uniqueness of this recipe is that the ginger and lemon grass are finely minced as opposed to being left whole as in traditional Thai soup. The good thing about this is that you don't have to "fish out" ingredients while eating the soup.