01 - 
                        1 sweet onion, halved and thinly sliced
                      
                    
                      
                        02 - 
                        1½ pounds boneless, skinless chicken breasts
                      
                    
                      
                        03 - 
                        1 (400g) can crushed tomatoes
                      
                    
                      
                        04 - 
                        1 tablespoon Worcestershire sauce
                      
                    
                      
                        05 - 
                        3 tablespoons apple cider vinegar
                      
                    
                      
                        06 - 
                        2 tablespoons brown sugar
                      
                    
                      
                        07 - 
                        3 tablespoons yellow mustard
                      
                    
                      
                        08 - 
                        2 teaspoons ground cumin
                      
                    
                      
                        09 - 
                        1 teaspoon garlic powder
                      
                    
                      
                        10 - 
                        1 teaspoon ground chile powder
                      
                    
                      
                        11 - 
                        1 teaspoon ground coriander