The temperature and time depend on what cookies you bake:
Bake thin biscuits 10~ 15 minutes.
Soft but not very thick (5 mm high)15 minutes, 180 degrees (cookies and the like, but excluding soft cookies)
Crispy but not thick (3 mm) for 25 minutes, 160 degrees (digestive cake)
Crispy and thick (1cm ~1.5cm) for 20 minutes, 170 degrees (cracked biscuits and soft cookies).
Puffed biscuit 10 minute, 200 degrees (soda cake)
Because of time, I didn't write everything out, but you can absorb experience and come up with a skill of making cookies yourself.
Or you can
Depending on what cookies you make, each cookie has different requirements, such as cookies, which require baking in the middle of the oven at 190℃ for ten minutes.
Extended data
1, preheating the oven is to adjust the oven to the temperature you want to bake for a while in advance, usually 5- 10 minutes. For example, if you want to bake something at the temperature of 170 degrees, plug in the power first, and then adjust the oven to 170 degrees for a while. Preheating is for when you want to bake something.
2. In general, this is the case, but each oven has its own temper, and the temperature may be biased. Pay more attention to the baking process, and it will be easier to handle if the temperature is too high.