What will happen if you open the oven door during baking cream puffs?

If you open the oven door during baking cream puffs, it can cause them to collapse. This is because the sudden change in temperature can cause the puffs to deflate. Additionally, the steam that escapes from the oven when the door is opened can also contribute to the collapse of the puffs.

To prevent this from happening, it is important to resist the temptation to open the oven door during baking cream puffs. Instead, you can check on the progress of the puffs by looking through the oven window. If you need to make any adjustments, such as rotating the baking sheet, do so quickly and carefully so as to not let too much heat escape from the oven.

By following these tips, you can ensure that your cream puffs bake up perfectly every time.