Ok, I baked the cake and cut wax paper to fit the bottom of the pan, and it came out in one piece!! I've never had a problem with it sticking to the sides, just the bottom. We had done the cake with vinegar in it for previous years, but I got a new recipe and thought we would give this a try. It came from General Mills (I called them to ask about something and when the lady found out that my ds was allergic to eggs they sent me a bunch of egg free recipes). Here's the one we used, but I'll edit it at the bottom as the mixing directions don't work out so well:
1 cup sugar
1/4 cup plus 2tbl cocoa
3 tbl shortening, melted
1 2/3 cups cake flour or 1 1/2 cups all purpose flour
1tsp baking soda
1tsp salt
1 cup buttermilk
1tsp vanilla
Heat oven to 350. Grease and flour square cake pan, 9x9x2 inches. Mix sugar, cocoa, and shortening in meduim bowl. Mix flour, baking soda, and salt; add alternately to sugar mixture with buttermilk and vanilla. Pour into pan, bake about 30 minutes.
I changed a few things though. I used butter instead of shortening. Also, I used round pans and put the wax paper on the bottom. The melted shortening or butter isn't enough liquid to mix with the sugar and cocoa, you will end up with lumps of it, I tried that way first. I ended up mixing all the liquids in one bowl and everything else in another, then mixing them together. Personally I think this recipe is a bit more moist than the ones using vinegar. Thanks everyone for the tips......Michael loved his birthday cake!! Also, for decorating it I use cake stencils and make a different colored frosting, or use sprinkles!!