HEAT oil in large skillet on medium-high heat. Add galangal and garlic; stir fry 1 minute. Add ground chicken; stir fry 4 minutes. Add water chestnuts; stir fry 2 minutes.
STIR in cilantro, green onion, lemongrass, fish sauce, crushed red pepper, salt and pepper. Spoon into bowl. Cool slightly or refrigerate until chilled.
MEANWHILE, for the Thai Dipping Sauce, bring sugar and water to boil in small saucepan, stirring to dissolve sugar. Cool slightly. Mix 1/4 cup of the syrup and remaining ingredients in small bowl. (Reserve remaining syrup for another use, such as sweetening iced tea.)
Thai chicken and lettuce wrap is yet another display of the richness of Thai cuisine in terms of flavors, mix of textures and the vivacious looking dishes. Take a look at this video for more details of this recipe. You would love your life after you have this for life has such gratifying dishes.