Common Mistakes Baking Cookies

Making cookies isn't always easy.
Business Insider spoke to bakers and compiled a list of common mistakes people make when baking cookies.
By not chilling the dough could be messing with the texture of your cookies.
Overcrowding the pan can lead to some wonky cookies.
Avoid overmixing or undermixing the dough.
Using stale baking powder or soda might make cookies fall flat.
Don't forget to adjust baking time if using dark colored baking sheets.
Opening the oven door too many times will make it harder for cookies to bake.