Ingredients: oil, salt, yeast, eggs.

Steps: 1. Sieve the flour, mix with salt and baking powder, then add yeast, egg and 10 to 15 grams of vegetable oil. Pour the cold water into the flour in several batches and stir with chopsticks to form a dough.

2. Knead the dough slightly with your hands, just enough to form a ball, don't over-knead, and if the dough gets a little sticky, rub some vegetable oil on your hands. Put the kneaded dough on both sides with vegetable oil, put it into a container, cover it with a lid or plastic wrap and let it ferment until the next morning.

3. Brush the surface of the dough board with oil and rub your hands with a little oil, then take out the dough and knead the board gently for a few minutes to get rid of the air in the dough. Rub the rolling pin with oil, and then pull down the right size ball of dough with your hands, flatten it, and then roll it out vigorously with the rolling pin to make it thin.

4. Make a few cuts with the tip of a knife to make a thin, crispy biscuit.

5: Heat enough vegetable oil in a wok over medium-high heat to 180 to 190 degrees.

6: Holding the pieces by the ends with both hands, place them in the frying pan on their sides.

7. When the biscuits rise from the bottom of the pan and one side is golden brown, turn over and fry the other side, then drain the oil and remove the biscuits from the pan.