1. Materials for making doughnuts: 250 grams of plain flour (half a catty), 150 grams of water (for making dough) + 15 grams (for making soda), 2 grams of salt, 3 grams of instant dry yeast, 1 gram of baking soda, 10 grams of cooking oil. Some cooking oil for frying. In addition, if not for children to eat can add 1~2 grams of non-aluminum baking powder and flour mixed together to use

2. flour (with baking powder plus baking powder together) and yeast together, placed on the board, the middle of the dig a small pit, add the amount of water by volume, add a time to the middle of the flour and water kneaded together, and then add more water, until it can be kneaded into a smooth dough, covered with a Cover with a lid or a pot or other container for fermentation

3. After the dough has doubled in size, rub some oil on the palm of your hand and press the air out of the dough

4. Knead 10 grams of cooking oil and the dough together

5. Continue to cover the pot or pot and wait for 20 minutes to wake up

6. Mix the baking soda with 15 grams of water to form a bicarbonate of soda, and then add the bicarbonate of soda with your right hand in a fist. Make a fist with your right hand, dip the back of your hand into the soda and put it into the dough little by little, put it evenly

7. Knead the dough again, cover with a container and let it ferment until it doubles in size

8. Take it out and use the palm of your hand to press the air out of it, and the oiled dough will be ready

9. Use your hand with a rolling pin, dip it into the oil, and make it into a dough that's about half a centimeter thick and a finger's length (the length of your middle finger, as the pot is small at home, it's too long for a rolling pin to roll out). The pot at home is small, too long to fit) rectangle