Good to know (via www.oregonlive.com):
If you’ve been using nonstick cooking spray on your waffle iron, it could cause the sticking. Nonstick cooking spray should not be used because the waffle iron becomes too hot when preheated, causing the lecithin in the spray to burn and leaving a sticky residue.
My son COVERED the inside of our oven with cooking spray. What is the best way to clean it out???