Inspired by the 'paying to have someone clean your oven' thread - does anyone know what that gloopy black/brown gunk is that sticks to grill pans, wire racks and (most irritatingly) the bottom of the oven? My Mr Muscle won't touch it, even though it gets rid of ordinary burnt on stuff, and i have to scrape it off, while trying not to damage the oven. I HATE it.
Will any normal cleaners get this off? And what is it?!?! Is it fat? I think I grilled some sausages once, but i mainly use the oven for baking muffins, heating plates, cooking lasagnes, nothing more adventurous than that. I dont understand where it comes from or how to get rid of it! HELP!