What is the difference between crisco and butter when baking cookies?
When you're baking cookies, if you use shortening instead of butter, your cookies come out higher. They don't spread as much as they do with butter, so your cookies turn out like the ones in the pictures instead of flat.
Butter is the fat in cookies. As it heats and melts it goes through chemical reactions with the sugar and flour, resulting in the difference between raw dough and baked cookies. Other fats including shortening, lard or oil can be substituted for butter, but will not have the same taste qualities as butter.