Making a number of 6 inch round molds
Wash the black rice, drain it, and dry it for later use.
Black rice into a powdery black rice flour
Mix the instant yeast and milk and mix well
Add black rice flour and powdered sugar and mix well.
Add the medium-gluten flour and mix well. (It doesn't have to be a long time, you can get into a group)
After the dough has been fermented to twice the size, the raisins are placed on the surface. Put cold water in the pot, put on the steaming grid, and boil the water for about 30 minutes with medium heat. If it is steamed from cold water, the whole journey takes about 35 minutes.
Put the kneaded dough into a round mold, press it evenly, and cover it with plastic wrap (preferably cover it again)
Steamed cake, take off the mold and put it on the cool rack to be cool. (If it is the next day, it is best to put it in a hot boiled pot. After a while, the heat will be soft and delicious.)