1 c. butter, softened
3 tbsp. cocoa
1/2 c. buttermilk
2 c. flour
1 tsp. vanilla
1 tsp. baking soda
1 c. Coke
1 3/4 c. sugar
2 eggs
1 1/2 c. miniature marshmallows

Combine everything except Coke and marshmallows. Blend at low speed. Add Coke and blend. Stir in marshmallows. Pour in greased pan. Bake 20 to 40 minutes at 350 degrees.

ICING:

1/2 c. butter
1/3 c. Coke
1 c. chopped pecans
3 tbsp. cocoa
4 c. powdered sugar

Beat until smooth. Stir in nuts. Ice on cool cake.