i doubt this is the authentic way but it's how i normally make it.
boil pickled bamboo shoots sliced in stock (preferably home made meat stock). when boiled, add sliced chinese mushrooms and tofu strips and bring to boil again. finally add cornstarch and season with lots of black vinegar and white pepper to give you the kick. in sichuan food, they always add what they call "flower pepper" which gives the numbness in your mouth. i personally don't like it so i give it a miss.
The ingredient list is long but you'll be rewarded for your hard work. I also teach cooking if you are interested, but I just moved here and need to find an apt first.