Ok so I made sweet patato fries with cut up sweet patatos, extra virgin olive oil, and seasonings and cooked them on a cookie sheet and after I took them out of the oven and served it I noticed that the pan was really really sticky! Like glue! Anyways, I can't get the "glue" off! I tried to wash it 3 times with lots of elbow grease but nothing is getting the "glue" off.Any tips to help me get the sticky residue off? Thanks