When you change from a 8x1 1/2 inch round pan to an 8x2 inch pan (hence more batter fits in your pan), make sure you make the appropriate adjustments to the cooking time of your cake. Which apparently is 15-20 minutes longer. Really?
I made a red velvet cake for cake decorating class tonight. Actually, after I failed to make a red velvet cake (from scratch, might I add), I made a banana cake from a box.