Steam cake separated egg yolks and egg whites do always collapse, do not split the whole egg whipped do and too rough, seek solutions ......

Before the invention of the split egg method of cake making, it was the use of whole eggs + sugar to whip directly.

The process is:

Whole egg+white sugar, mix slowly until the sugar is melted, then quickly until the volume is beaten 6-7 times bigger, then add the flour, mix slowly, then add a small amount of water and oil and mix well.

Then it's time to mold, and bake.

Much slower than the split egg method: the whole egg is beaten directly, and with less defoaming in mind, the amount of water added is much less.