Purple Sweet Potato Shortbread
                            
                                1.
                                The purple sweet potato is steamed and mashed while hot
                                    
                            
                            
                                2.
                                Add solid cream, milk powder and sugar
                                    
                            
                            
                                3.
                                Mix well. Add cooked glutinous rice flour
                                    
                            
                            
                                4.
                                Mix well and knead into small balls for later use
                                    
                            
                            
                                5.
                                The oily skin material in the ingredients is mixed with 100g of water to form a dough, and knead for a while
                                    
                            
                            
                                6.
                                The ingredients of the pastry in the ingredients and the pastry dough
                                    
                            
                            
                                7.
                                Divide the two doughs into 12 dough pieces each
                                    
                            
                            
                                8.
                                One oily skin wraps one shortbread, wrap it up, reunite, close the mouth and put it down
                                    
                            
                            
                                9.
                                Each dose is rolled first
                                    
                            
                            
                                10.
                                Roll up
                                    
                            
                            
                                11.
                                Come and roll it out again
                                    
                            
                            
                                12.
                                Rolling up, finishing in turn
                                    
                            
                            
                                13.
                                Roll each dose into a round cake. Pack the purple sweet potato filling
                                    
                            
                            
                                14.
                                Pack it up, close down and reunite
                                    
                            
                            
                                15.
                                Wrap the purple sweet potato crisps and place them on the baking tray, spread some water on each top and sprinkle with some sesame seeds
                                    
                            
                            
                                16.
                                Into the oven, 190 degrees, 20 minutes
                                    
                            
                            
                                Tips: 
                                Knead it for a while when mixing it with the oily skin, so that the shortbread dough becomes a ball.
 The oven is preheated in advance, and the time is set according to the performance of your own oven.