How do I clean burnt milk from a glass-ceramic stove? I have a glass-ceramic stove (Ceran), and I did spill some milk on it,  which of course instantly burnt itself onto the surface. It seems resistant to any mild way of removing it, and I'm not sure how harsh I can try to remove it without damaging the glass-ceramic surface.

What is the easiest way to remove such burnt milk from a glass-ceramic stove without damaging it?
There are a couple things you can try.  I'll list them from most conservative to 


Let it cool. Squeeze some cleaning paste on it, and cover with a
paper towel. Wet the towel, let it soak, then buff it with the paper
towel or a non-scratch scouring pad.
Magic Eraser-type melamine foam sponge
Plastic razor blade scraper, sometimes called "Safe    Scraper" sold
at hardware and automotive stores
Metal razor blade scraper