
Step1:No water, no oil, no yolk in the protein containe

Step2:Add corn oil and milk to the yolk and mix wel

Step3:Stir until no oil is visibl

Step4:Sift in flour and cocoa powde

Step5:Mix well and float down, not drip dow

Step6:Take another basin and put in 3 protein

Step7:Beat the egg whites with an electric beater until they look like fish eye

Step8:Add 1/3, granulated sugar, beat until the protein becomes thicker and thicker

Step9:Add 1 / 3 of fine sugar and beat until the protein is thick and the surface is striated

Step10:Add the remaining 1 / 3 of fine sugar and continue beating until the egg beater is lifted and the protein can pull out a short upright sharp corner, which indicates that the dry foaming state is reached and the beating is stopped

Step11:Take 1 / 3 of the protein and mix it evenly (from the bottom of the basin to the top, do not circle it to avoid protein defoaming

Step12:Mix the egg yolk batter back into the egg white and continue to mix until the egg white and the egg yolk batter are fully mixe

Step13:Pour the mixed cake batter into the mold and smooth it. Drop the mold on the table twice and shake out big bubbles

Step14:Bake at 150 ℃ for 1 hou

Step15:When it's out of the furnace, it's going to fall down and shake out the hot gas, and then it's going to be turned upside down to cool

Step16:
Cooking tips:There are skills in making delicious dishes.