1. Heiqiao chopped up in advance and set aside.
2. After the black coffee is boiled with hot water, pour in the oil and stir.
3. Sift in low powder.
4. Mix until there is no dry powder.
5. Add egg yolks.
6. Stir in a single stroke.
7. The white sugar is added to the egg whites for a one-time pass, and there are delicate and shiny small hooks.
8. Stir 1/3 of the egg whites.
9. Pour all into the egg white bowl and stir.
10. Add chocolate chips.
11. Pour into the hollow mold.
12. The bottom layer is 150 degrees and 40-45 minutes (time and temperature are for reference only)
13. The heat is lightly shaken out of the oven.
14. Let it cool down.
15. Demoulding with bare hands.
16. Finished product.
17. Finished product.
18. Finished product.
