How do you clean baked on mess on a cookie sheet from sweet potatoes?

First try soaking the pan in hot water and dawn overnight. Use a rubber spatula to scrape off the residue. If that does not work try bar keepers friend.

Mix together the baking soda, dish soap, and hydrogen peroxide in a small dish. Stir until it resembles a bowl of whipped cream, adding more hydrogen peroxide as needed......Spread the mixture over the pot or pan and allow the cleaner to work its magic for a few minutes. Baking soda is a natural and soft abrasive that helps lift stains from metal, while hydrogen peroxide does a wonder cleaning and breaking up buildup......Place the pot or pan in your sink and use a scrub sponge to gently work the cleaner into the cookware. Continue working until everything's sparkling clean......Wash and rinse the pot or pan and enjoy its shine. This metal cleaner is safe to use as often as needed to keep pots and pans looking just about brand new. ***** If it is really baked on hard this will work but be careful because of the fumes. Place the cookie sheet in a garbage bag. Pour 1/2 c ammonia into the bag and seal it tightly for 24 hours. Cut open the bag carefully (outside is best), but with windows open will work too. Simply rinse and throw away bag. The Ammonia fumes soften the crust up.

Put some water in the pan and place a dryer sheet in the water. Let it sit overnight. I don't know why it works but it does. You'll be amazing - everything will be loose in the morning.

A tip from an old friend - I could kiss him for this one: spray them with OVEN CLEANER! Follow the directions for use with a mildly warm oven - leave overnight in the oven - & "VOILA!"

I'd clean it with a baking soda and hydrogen peroxide paste.

i use a single sided razor blade to clean burned on oil or any spill overs in my oven and cookie sheets. Careful with the razor blade. Lynne.

I BUY SANDING SPONGE FROM THE DOLLAR STORE. IN THE PAINT ISLE.MED TO FINE GRIT. I USE THEM WET FOR MY POTS AND PANS EVERYTHING. THEY ARE GREAT AND CHEEP

I recently had someone ask me to clean her years of baked on glass top stove and oven.. I mad a paste of baking soda and hydrogen peroxide. It worked like a charm.