The easy and best way, isn't quite the option right now.Where's Global warming when You need it. Just set it out in the hot sun for about half a day, wipe it down every couple of hours, works great. Doesn't work to well during the ice age though.

Next best method that I tried, wipe off the excess with paper towels. Then take a hair dryer/heat gun on the low setting. works well enough.

The oven method is an option, You have to field strip it and put it in on the lowest setting for a few hours. That one is the most dangerous though, You need to put down plenty of foil, and make sure Mama is out of town for a few days.

Last, There is the Chemical/warm water method. Oven cleaner works good. I did it once, Decided that it was not the prefered way. Too much work and, the results weren't that great.

Good luck with it and remember to post pic's.