1. Ingredients: 150 grams of flour, 10 grams of milk powder, 10 grams of sugar, 2.5 grams of dry yeast, 95 ml of warm water, and 10 ml of oil.

2. Accessories: 2.5 ml of salt, 0.5 ml of baking soda, 7.5 ml of warm water.

3. Pour milk powder, yeast, sugar and 95 ml of water into a bowl.

4. Stir evenly to form yeast water.

5. Add to the flour.

6. Knead into a ball.

7. Add oil.

8. Knead into a smooth dough.

9. Ferment until doubled in size.

10. Pour the salt and baking soda into 7.5 ml of water and stir to dissolve.

11. Knead the dough bit by bit.

12. Ferment again until doubled in size.

13. Roll out into long strips.

14. Cut into sections.

15. Make it into a dough stick shape.

16. Preheat the air fryer to 200 degrees for 5 minutes.

17. Brush oil on the surface of the cake base.

18. Put in the preheated fryer, 200 degrees.

19. Take it out after 2 minutes and brush with oil.

20. Continue frying until the surface is golden brown and take it out of the oven.