Why do chocolate chip cookies go flat when baking?

For most cookies, there’s enough fat in the dough to keep them from sticking to your baking sheets—no greasing required. … If you grease the pans unnecessarily, the dough will flatten too much as it bakes. Related, reusing baking sheets for multiple batches of cookies can be another cause of flat cookies.

What do you do with cookies that don’t turn out?

20 Creative Ideas to Use Up Leftover Christmas Cookies

1. Make a cookie crumb pie crust. …
2. Cookie croutons. …
3. Line a baking pan. …
4. Make a shake. …
5. Create tricked-out magic cookie bars. …
6. Add texture to ice cream cakes. …
7. Garnish glass rims with cookie crumbs. …
8. Make creative Nanaimo bars.

What should be done before storing baked cookies?

Make sure cookies cool completely before storing. Store them at room temperature in an air-tight container, like Tupperware. Store different flavors separately. Over time, strongly flavored cookies like molasses or mint will seep into other cookies, so if possible store each flavor in its own container.

Does baking powder make cookies spread?

1. Unless you want cakey cookies, avoid using baking powder: The cookies made with both the single- and double-acting baking powders were just too darn cakey. 2. Baking soda helps cookies spread more than baking powder.