1. 300 grams of flour, put some salt, add about 150 grams of cold water, knead into a relatively hard and smooth dough. For a while.
2. Roll into a blockbuster.
3. Fold it up and cut into noodles.
4. When you roll the noodles, you can boil the water and make the noodles. Just open a few, it's easy to cook.
5. When the noodles are cooked, put them in cold water and change the cold water several times.
6. The cool lunch is good.
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