01 - 
                        1 pound of thinly sliced flank steak.
                      
                    
                      
                        02 - 
                        1 medium white onion, cut into slices.
                      
                    
                      
                        03 - 
                        4 scallions, chopped into 2-inch sections.
                      
                    
                      
                        04 - 
                        4 garlic cloves, chopped finely.
                      
                    
                      
                        05 - 
                        2 tablespoons vegetable oil, split.
                      
                    
                      
                        06 - 
                        1 tablespoon soy sauce.
                      
                    
                      
                        07 - 
                        2.5 tablespoons cornstarch, used in parts.
                      
                    
                      
                        08 - 
                        3 tablespoons Shaoxing wine, divided.
                      
                    
                      
                        09 - 
                        2 teaspoons sesame oil.
                      
                    
                      
                        10 - 
                        1/2 teaspoon baking soda.
                      
                    
                      
                        11 - 
                        1 tablespoon oyster sauce.
                      
                    
                      
                        12 - 
                        1/2 tablespoon dark soy sauce.
                      
                    
                      
                        13 - 
                        1/4 teaspoon black pepper.
                      
                    
                      
                        14 - 
                        4 tablespoons water.
                      
                    
                      
                        15 - 
                        1 teaspoon sugar.