Great post! Question: do you need to grease a sheet and if so, what do you use? I do use parchment but if out, I've used Pam and the bottoms always seem to burn. Yesterday I didn't grease or use parchment and cookies came out fine. There is usually enough fat content in the cookie dough to not need the grease. The excess fat may indeed be causing them to brown further and faster. ~Amy

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