Ingredients: 500g flour, egg 1 piece, salt 1 spoon, and 220g water.

Add an egg to 1 500g flour.

2. Add a spoonful of salt to 220g clean water and melt.

3. Add the salted water into the flour bit by bit and knead it into dough for about 8 to 10 minutes.

4. Cover the kneaded dough with plastic wrap and wake it for more than 30 minutes.

5. Divide the dough into two halves.

6. Roll the dough into a round cake.

7. Sprinkle a proper amount of dry flour on the bread and roll it out with a rolling pin.

8. Hold the rolling pin on the top of the roll with both hands and push it forward, then pull it back and push it forward.

9. After the push-pull action is repeated several times, it is necessary to open the dough, sprinkle a little dry starch, roll it up and repeat this action.

10, dry dough folds like an origami fan.

1 1. Finally, the tangent plane.

12, finished product drawing.