1. Weigh all the ingredients, mix low-gluten flour, baking powder, and baking soda evenly and sieve
2. Remove the pits of the jujube, put it in a pot, add 500 grams of water, cook on low heat until the water is dry and the jujube is soft and rotten.
3. Add brown sugar and mix well with spatula
4. Add four eggs, beat with a whisk until the color is white and the volume is enlarged
5. Pour in the sifted flour
6. Beat with a whisk until there is no dry powder
7. Add corn oil and mix well with a spatula
8. Pour it into a baking dish lined with greased paper, shake out big bubbles, sprinkle with white sesame seeds, I use a 12-inch rectangular deep baking dish
9. Put it in the preheated oven, middle level, upper and lower heat, 135 degrees, about 50 minutes
