Instructions: Prepare cake: In a bowl, sift sugar and flour. Add marshmallows. In a sauce pan, ix butter, oil, cocoa and cola. Bring to a boil. Pour over sugar mixture. Blend well. Add buttermilk, vanilla, eggs and baking soda. Mix well. Pour into a well greased 9 x 13 x 2 baking pan. Bake in pre-heated oven, at 350 deg f for 45 minutes. Remove from oven and frost immediately.

To make frosting: Combine butter, cocoa and coca cola in a sauce pan. Bring to boil. Pour over powdered sugar, blending well. Add vanilla and pecans.

Spread over cake. When cake is cool, cut into squares.

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