Sugar Triangle
                            
                                1.
                                Prepare the ingredients, add all-purpose flour and yeast in a large basin, add milk and sugar to a small basin, mix well and melt, stir and fuse the flour and yeast with chopsticks
                                    
                            
                            
                                2.
                                Slowly pour the milk into the flour, and use chopsticks to stir until there is almost no dry flour. Knead the dough with your hands until the pot is light, hand light, and the dough is smooth. Cover with plastic wrap or place in a warm place and ferment to double the size
                                    
                            
                            
                                3.
                                Make brown sugar filling: add a little flour to the brown sugar, press with a spoon and stir evenly
                                    
                            
                            
                                4.
                                Take a part of the fermented dough, sprinkle a little flour on the panel to prevent sticking, press the dough to exhaust and knead it into a long strip, and cut it into small noodles
                                    
                            
                            
                                5.
                                Take out a potion, knead it and squash it, use a rolling pin to roll out into a dough with a thickness of about 3-4 mm, and put an appropriate amount of brown sugar filling in the middle of the dough.
                                    
                            
                            
                                6.
                                Dip your fingers in water and draw a circle around the brown sugar to increase its viscosity. Pinch out a corner on both ends of the dough, then fold the other two corners back, pinch tightly to close the mouth
                                    
                            
                            
                                7.
                                Prepare the remaining dough one by one, put it into the steamer at a certain distance, and cover the lid and let it stand for about 10 minutes. Pour enough water into the steamer and bring it to a boil. Put the sugar triangle into the steamer, steam for about 10 minutes, turn off the heat, and steam again for 5 minutes.
                                    
                                        
                                        
                                     
                            
                            
                                Tips: 
                                1. The brown sugar should be pressed several times with a rolling pin before mixing the stuffing to prevent the brown sugar from clumping, and the steamed sugar packet does not taste good
 2. The brown sugar must be mixed with the right amount of flour to avoid the sugar juice flowing out when steaming, so that the sugar bag leaks out.
 3. For the filling, you can replace the brown sugar with walnuts and peanuts according to your preference.
 4. Milk can be replaced with water
 5. The method to test whether the dough is successfully fermented: You can dip your fingers in a little dry flour and insert it into the dough. If the small holes do not sink or shrink, you can see many honeycomb-shaped holes when you open the dough;