→ Base Layer
                    
                      
                        01 - 
                        2 1/4 cups (281g) plain flour, with extra for dusting
                      
                    
                      
                        02 - 
                        1/4 teaspoon salt
                      
                    
                      
                        03 - 
                        1/2 teaspoon baking powder
                      
                    
                      
                        04 - 
                        3/4 cup (170g) butter at room temperature
                      
                    
                      
                        05 - 
                        3/4 cup (150g) white sugar
                      
                    
                      
                        06 - 
                        1 egg, large and at room temperature
                      
                    
                      
                        07 - 
                        2 teaspoons vanilla flavoring
                      
                    
                  
                    → Center Filling
                    
                      
                        08 - 
                        15-20 hard candies (use Jolly Ranchers or Life Savers, unwrapped)
                      
                    
                  
                    → Extras
                    
                      
                        09 - 
                        1 egg white, large, or 2 tablespoons water
                      
                    
                      
                        10 - 
                        1/3 cup (65g) sprinkles or chunky sugar