Wipe off excess water so you don't end up with a soggy cake, then cut through the cake once ... but if you're like many home cooks who have one basic chef's knife you've splurged on, that will ...

If you happen to run out of buttermilk, though, Ree Drummond, celebrity chef and self-proclaimed pioneer woman ... paper for your pan is to trace its shape on the parchment with a pen, then cut it out ...