Put the oil, water and salt into a small bowl and mix well. Put the flour and water in a small bowl into a container and knead it into a wet dough. Roll it as thin as possible. You can use a dough press. The pressed dough pieces are cut into corresponding shapes with a knife according to the size of their own small pots. Cut a few knives in the middle of the dough, and then fry in the oil pan. Both sides should be golden brown, not too light. It's easy to be brittle if it's light. When eating, don't eat it alone, it will taste better in the cake.