→ For the base
                    
                      
                        01 - 
                        Leftover mashed spuds from yesterday, roughly 2 big cups
                      
                    
                      
                        02 - 
                        Any unused cooked veggies sitting in your fridge (think leafy cabbage, orange carrots, sweet peas, or tiny Brussels sprouts all work great), chopped up to make 1 cup
                      
                    
                      
                        03 - 
                        Raw onion, chopped small, about 1/2 cup
                      
                    
                  
                    → For frying
                    
                      
                        04 - 
                        Top-notch butter, 2 tablespoons
                      
                    
                      
                        05 - 
                        Cold-pressed olive oil, 2 tablespoons
                      
                    
                      
                        06 - 
                        A big pinch of coarse salt and cracked black pepper