How do I clean my amana cooktop. I can't seem to get it clean no matter what products I try from cooktop cleaner to windex

Hi....you can call me M. G. and just to ease your mind, I am an appliance Technician & have been pretty much all of my adult life. Have you tried a product called Cerama Bryte? It looks like calamine lotion only white in color. You have to follow the directions on the back of the bottle & you may have to do it more than once, but it is the best & i don't really recommend anything else. And you are gonna have to find yourself a nonabrasive scuff pad.... and that's gonna help cut that stuff off the glass. best part is that Cerama Bryte makes several products devoted to cook-top cleaning including special Cleaning Pads for glass tops. Windex is the worst thing to use. And as a last resort, I have 1 more method, but you should do just fine with this one. I've seen it remove some serious stuff!! You can re-post if this doesn't correct your issue and I'll explain my "Last Resort Method"to you. And once you get that thing clean (or as clean as it will come), as a suggestion you probably need to clean the cook-top only with a product designed to clean cook-tops and the same day the mess is made so those stains won't build on top of one another. Well, good luck and hope I've been of some help :-)