Ingredients: 300g flour (I used ordinary flour or high-gluten flour), 20g milk powder, 20g sugar, 5g yeast powder, 190ml warm water, 20ml cooking oil, 5ml salt, 1ml baking soda, 15ml warm water. Method: 1. Flour

(The ordinary flour and high-gluten flour I used are also acceptable) 2. Milk powder + white sugar + yeast powder 3. Use 190ml of warm water and stir evenly 4. Use yeast water to stir the dough into a ball 5. Pour in cooking oil and knead the dough into a dough

6. Cover with protective film and ferment (the room temperature in summer is about 30 degrees now, which is suitable for fermentation.