Cooking Steps

1. 

   Step1:Prepare the required ingredients. Yolk and protein separation.

2. 

   Step2:Mix the yolk evenly. Add sugar, yogurt and salad oil.

3. 

   Step3:Add the cake powder in batches.

4. 

   Step4:Beat the egg whites (it's better to use an electric egg beater. There's no water in the egg beater's bowl).

5. 

   Step5:Add the cake paste to the paper cup (shake it slightly. Reduce the bubble inside

6. 

   Step6:Heat the oven up and down for about 20-25 minutes. Oven is different. You have to be sure not to scorch. (oven can be preheated in advance -

7. 

   Step7:The final product is out of the oven.