In a bowl combine pork, soy sauce and cornstarch, stir until evenly distributed.
In small bowl, combine sauce ingredients: water, soy sauce and sesame oil.
Place wok over high heat until hot. Add oil, swirling to coat sides.
Add garlic and stir-fry until fragrant about 20 seconds.
Add pork and hot bean paste, stir-fry until pork is crumbly, about 2 to 3 minutes. Pour sauce into pork mixture, add water chestnuts, green onion Slide tofu into wok, and stir gently (or simply swirl the wok) to coat the tofu with the sauce and heat through, about 2 minutes.
Add cornstarch solution, cook gently stirring, until sauce thickens about 1 minute.
Chef Yan has remained an active international food ambassador throughout his career. He roams the world representing different commercial and social concerns to entertain and educate the public, sharing with them his unique humor and strong passion for Chinese cooking.