Sichuan chicken dumplings from the new izakaya-inspired menu in the lounge at The Source. Photo by Rebecca Cooper Dish of the Week: Sichuan Chicken Dumplings Where: The Source The hot, tangy sauce served over “dan dan” noodles in China was Chef Scott Drewno’s inspiration for these dumplings ($8), which are just one of the nearly two dozen dishes gracing his new izakaya-inspired lounge menu at The Source. This being a Wolfgang Puck establishment, Drewno…