Cooking Steps

1. 

   Step1:Put yam, Ajiao jujube and water into the pulverizer to make mu

2. 

   Step2:Add oil, yolk and brown sugar. Mix well with a grinder

3. 

   Step3:Whisk the egg white to dry foaming. No more sugar was added to the egg white, because the sweet taste of donkey hide gelatin dates and brown sugar was enoug

4. 

   Step4:Mix 1 / 3 protein with mud in step

5. 

   Step5:Step 4 pour in the remaining 2 / 3 of the protein. 8-inch mold. Heat up and down 160 degrees. 1 hour or so. I also put another baking pan with water (similar to the water bath method of cheese cake).