Stir buckwheat flour evenly with boiling water, put it in a pot of water at 80℃ together with the basin, steam it in water, take it out 10 ~ 15 minutes, let it cool, add a little grain flour, mix a little baking soda or yeast powder for fermentation, dip your hand in oil to make a circle the size of your palm, put it in an oil pan, fry it with 80% fire to brown, and take it out.