1. Add butter, eggs and appropriate amount of water to flour to form water-based oil dough. The hardness of dough should be equal to that of shortening. The hardness of shortening is related to temperature. It is soft when it is hot and hard when it is cold.

2. Roll out the dough and coat it with shortening.

3. After wrapping, roll it into a large piece, fold it in half on both sides, and repeat this step twice. Roll it into a big piece and the cake will be ready.

4. Cut the crisp into 8 cm wide strips, brush with a little water, stack the four layers and cut into pieces with a thickness of 1 cm.

5. Roll it gently with a rolling pin to wrap the lotus paste stuffing.

6. Make it into the shape of a swan.

7. Knead the dough with water and oil into thin strips, make a swan neck, and bake it in the oven.

8. Fry the crisp green embryo in the oil pan of150 C.

9. Connect the fried pastry with the neck, and the swan pastry is ready.