Ingredients: buckwheat flour, white flour, corn starch, a spoonful of salt, a spoonful of edible alkali, water, etc.

1. First, we take a clean basin with no water or oil, and pour buckwheat noodles and white flour on both sides of the basin according to the ratio of 1: 1. Then add a spoonful of salt and a spoonful of edible alkali.

2. Add corn starch to this side of white flour. The proportion of starch is about one tenth of that of white flour, or a little more.

3. Add boiled water to buckwheat noodles and stir with chopsticks while adding water.

4. Add cold water to one side of the white flour and stir with chopsticks while pouring water.

Finally, mix buckwheat flour and white flour with chopsticks, then knead the flour by hand and make it as hard as possible, so as to be firm.