Chocolate cola cake (star)

1. Mixi flour and sugar; set aside.
2. In a sauce pan, mix margarine, vegetable oil, cola, and cocoa.
3. Bring mixture to a boil.
4. Pour immediately over flour mixture.
5. Add remaining cake ingredients, mixing thoroughly.
6. Pour into 9 x 13 inch greased pan. Bakei at 325 deg f for 40 minutes.
7. When cake is almost done begin making icing.
8. Bring margarine, cocoa and cola to a boil.
9. Beat in powdered sugar.
10. Spread icing on cake while warm.
11. Allow to cool before cutting into large squares.
12. Makes 12 servings.