This is a Chinese dessert, we named it Steamed sponge cake. Although it looks like western cake, but it absolutely wasn’t  baked out by the oven.I think you must want to know how to cool.

Ok, let us together study…..

Corn flour,
Baking powder

How to make

At first. put the amount of water in the corn flour and baking powder, ferment. After the fermentation of maize flour rubbed into the alkali, add lard, and then repeated after kneading, cover with a damp cloth about 1 hour.
And then,  go on repeatedly kneading above dough, put the whole  into steamer and steamed about 25 minutes in boiling water, when it turned cool, with a knife cut into diamond or square pieces.

The Steamed sponge cake is OK.