2 c. plain flour
2 c. sugar
1/2 tsp. baking soda
1/2 c. buttermilk
1 stick butter
1 c. coca cola
1 1/2 c. small marshmallows
1 tsp. vanilla
3 tbsp. cocoa
2 eggs, beaten

Combine sugar, flour and soda in mixing bowl. Heat the butter, cocoa, marshmallows and coca cola to boiling and mix with sugar and flour mixture.

Add milk, eggs and vanilla and mix well. Bake at 350 degrees for 30 to 35 minutes in a large flat pan or Pyrex dish (8 1/2 x 13 1/2 inches) that has been greased and floured.

ICING:

1 stick butter
6 tbsp. coca cola
1 box confectioners' sugar
2 tbsp. cocoa
1 tsp. vanilla
1 c. chopped nuts

Combine butter, coca cola and cocoa in saucepan. Heat to boiling. Pour over the sugar, add vanilla and beat on high with electric mixer for 2 minutes.

Add pecans and pour over hot cake. Cool and cut into squares.