8 oz. butter
8 oz. cola (diet or reg.)
2 tbsp. unsweetened dry cocoa
2 c. flour
2 c. sugar
1/4 c. sour cream
1/4 c. milk
1 tsp. baking soda
2 lg. eggs
1 tsp. vanilla
1 1/2 c. miniature marshmallows

In 2 quart saucepan combine first 3 ingredients, bringing to boil, stirring constantly. At once remove from heat and with electric mixer beat in flour, sugar, soup, cream beating well. Combine the milk with soda and beat into flour mixture. Beat in eggs and vanilla with spoon, stir in the marshmallows. Pour batter into a greased and floured 9 x 13 x 2 inch pan. Bake at 350 degrees for 30 to 35 minutes for glass baking dish 40 minutes for metal baking dish.