I have a tried and true chocolate chip cookie recipe (it's a knock-off of the Keebler Softbake Cookies). But the last batch I made, when I went to bake them, they spread in the oven and got flat. Generally they usually stay a little more formed and have more height to them.
What could have gone wrong? I chilled the dough, used butter, not margarine and followed the recipe exactly. Is there anything I can do to remedy the dough???