1. Put sugar, oil, milk in the egg yolk, soak it for later use
2. Put a few drops of white vinegar on the egg whites to make fisheye soaks and put the sugar once
3. Add the second sugar when the foam is fine at high speed
4. Stir the egg yolks well
5. Finally, add the remaining sugar to make it wet, just bend the hook
6. Sift in low powder and mix well
7. Well mixed batter
8. Cut the egg whites 3 times and mix evenly
9. Use a little cake batter and some cocoa powder and mix well
10. Cocoa cake batter is put into a piping bag
11. Pour the cake batter into the baking tray to make the bubbles out. The cocoa cake batter is put into the piping bag and cut a small mouth to squeeze out a straight line on the white cake batter.
12. After drawing the horizontal line, draw the vertical line with a spatula
13. Painted patterns. The hand-painted party is not good
14. Preheat the oven at 170℃ and bake for 20 minutes
15. Take out the undercut release
16. Cut into pieces
Tips:This is an ordinary chiffon cake, but with some small tricks, the surface of the cake batter is ~ straight
