I've had A Taste of Thai's cook booklets for years, & enjoyed the few dishes I did try. Don't have time to type out the recipe, but you can find it on their site (below). The ingredients listed in their soup base mix, are reminiscent of the flavors I've had at Thai restaurants. You can add the straw mushrooms & garnish w/ cilantro (or mint) & add lime juice, to taste. Enjoy!
http://atasteofthai.com/index.php?page=recipe&id=91