1. Peel the pumpkin

2. Cut it into small pieces

3. Steam it in a steamer

4. Put the steamed pumpkin in a blender and puree it.

5. This is the pumpkin puree.

6. Open the eggs, separate the whites and yolks and set aside.

7. First, add 20 grams of sugar and oil to the egg yolks and mix well.

8. Add pumpkin puree and mix well with a whisk.

9. Then put in the sifted low-flour.

10. Mix well.

11. Egg whites across 40 degrees of warm water, beat until coarse foam, add vinegar moderate, add sugar in 3 times, continue to beat.

12. Beat to stiff peaks

13. Put the egg white into the egg yolk pulp in 2-3 times.

14. Stir well and mix well

15. Pour into a greased baking tray, preheat the oven and bake at 150 degrees for 20 minutes.

16. Remove from the oven, invert the baking sheet while still hot, and let cool slightly before cutting into pieces.