During my Wilton course I recieved the instruction book wherein I had found this simple way to decorate a loaf cake. I just tried it out!!!
1 cup all purpose flour
3/4 cup confectioner's sugar
1/2 cup vegetable oil
1 tsp vanilla essence
1 tbsp milk
2 tsp baking powder
Beat the eggs and sugar until light yellow in color. Then add the flour gradually stirring in with a whisk. Then add vegetable oil, vanilla essence, milk, and baking powder. Beat until the mixture is light. Pour the thinned batter into a 9x5 inch loaf pan lined with wax or parchment paper. Put it in preheated oven at 350 degrees F. Bake for about 20-25 min or until the toothpick inserted into the center comes out clean. Let it cool. Cut out into slices or frost it if you want.
Buttercream frosting (Follow the recipe in the Wilton course cakes section)