Oil and lightly flour a 9x13" pan. If using two 8" round pans instead, see notes below.
Pour batter into pan and bake for 30 min. or until toothpick comes out clean.
Let the cake cool completely.
Frost cake and decorate if desired.
Notes
For frosting and decorating, you can use buttercream frosting.For two 8" round cakes - cut two pieces of wax or parchment paper the size of the round cake pan. To make it easier to remove the round cake intact, place the round paper at the bottom of each pan before pouring cake batter. Once the cake is done, release the sides of the pan with a butter knife, flip upside down, tap around the cake pan and the round cake should pop right out intact. You should be able to easily peel the parchment paper off the round cake bottom.