First thing’s first: unplug that thing. I know you want to attack it while it’s hot like a maniac, but don’t. You’ll just melt synthetic goo deeper into the plate.
Let it cool down to “warm to the touch” but not “lava.” A warm plate helps the gunk loosen up. A hot plate gives you third-degree burns. Your choice.
While you’re waiting, pour yourself a coffee. You deserve a breather before this little spa treatment for your appliance.