Candied Sweet Potatoes

Hi. We're having a "last supper" tomorrow night in my Sociology class, right after out last test (YYEEEAAAAA!!!!)

I said I'd bring candied yams. So I'm wondering, if I make them tonight, and put them in the crock pot on low, will that be too much cooking, i.e., all day waiting for tomorrow night?

I've never made sweet potatoes in a crock pot. Most of the time vegetables don't get 'tender' for me.

Any suggestions? Thanks, all you good cooks out there :)