[header] How to prevent baking a lumpy cake [title] Place oven rack so cake pan will be baking near the center of your oven so the hot air can circulate fully. [step] Make sure rack is level. [title] Preheat oven. 
[title] Prepare your pans by lining the bottom with parchment paper or waxed paper. [step] Trace the pan on top of the paper you are using, then cut on the line.