When stirring, smell the aroma of soy flour mixed with sucrose. Love it. Brown sugar is made from a small bowl of brown sugar, because it is blocky and needs to be melted with hot water. If you don't have it, you can use ordinary brown sugar. I think it is better to add some sugar to the egg whites, so 20g of sugar soy flour was used in the Japanese supermarket.
Add the egg yolk to the melted brown sugar water and add the corn oil. To make the water and oil mix well.
Add the sieving powder and mix well.
The oven is preheated to 200 degrees. Egg whites are sent and added to the sugar three times. Send it to a sharp point.
First add one-third of the egg white to the batter and mix well. Add the remaining egg white twice and mix well with a spatula. Finally pour into the mold.
Place the cake paste on the lower layer of the oven, lower the oven to 175 degrees, and bake for 35 minutes.
After the furnace is released, the mold is dropped from the 40 cm table and then buckled. Wait for the cold to die.