Follow instructions on box.
Bake at 350 degrees for 12-15 minutes or until toothpick inserted in center comes out clean. Don't overcook.
Let cake cool in pan on a wire rack for approximately 10 minutes.
Use a pairing knife to run around the edges of the cake to help loosen sides.
Turn upside down onto a cooling wire rack.
Let cake continue to cool before frosting the cake.