1. Separate egg whites and yolks
2. Add egg yolk, milk, corn oil, 6g sugar and mix well
3. Weigh low-gluten flour, cocoa powder, coffee powder
4. Sift into the egg yolk
5. Stir into a uniform egg yolk paste
6. Add a few drops of white vinegar to the egg white, add the remaining sugar in portions, and beat
7. Take half of the egg white into the egg yolk paste and mix evenly
8. Pour back into the egg whites, stir evenly, and pour into the mold
9. Bake at 140 degrees for 40 minutes
Tips:After being out of the oven, let it cool and release from the mold.
