1. Ingredients: 4 medium-sized eggs, 96 grams of all-purpose flour, 24 grams of corn starch, 30 grams of white sugar (egg yolk), 65 grams of white sugar (egg white), 50 ml of pure milk, corn oil 50 grams.

2. Mix starch and flour evenly.

3. Separate the egg white and yolk, making sure there is no water. Add the sugar, milk and oil to the egg yolks and beat evenly, then sift in the mixed powder from the previous step and mix well.

4. Use all means to beat the egg whites, adding sugar in three stages.

5. Add half of the egg whites into the egg yolk liquid and mix evenly.

6. Pour the mixed egg yolk liquid into the remaining egg whites and continue to mix evenly.

7. Pour the cake liquid into the paper cup, wait for the air fryer to preheat for 5 minutes, and then put it into the pan. 150℃, 20 minutes, glance at it from time to time, and increase or decrease the time as appropriate.