Coca-Cola Cake

2 c. sifted flour
2 c. sugar
1/2 tsp. salt
2 sticks butter or margarine
2 1/2 T. cocoa powder
1 1/2 c. miniature marshmallows
1 (12-oz.) can Coca-Cola
1/2 c. buttermilk
1 tsp. baking soda
2 eggs
1 tsp. vanilla
FROSTING:
1/2 c. butter
3 T. cocoa powder
6 T. Coca-Cola
2 lbs. powdered sugar

Directions

Sift flour, sugar, and salt in a bowl.
Heat butter, cocoa and Coca-Cola to boiling point.
Pour over flour mixture and mix well.
Add buttermilk, baking soda, eggs, and vanilla.
Stir in marshmallows. Batter will be thin and marshmallows will float.
Grease and flour a 9x13 pan and bake at 350° for 30-35 minutes, or until a toothpick in the center of the cake comes out clean of cake batter.
FROSTING:
Combine butter, cocoa, and Coke in a saucepan and bring to a boil.
. Pour over about 5 cups powdered sugar and stir (if you use a fork rather than an egg beater, it makes the frosting very fluffy).
Add powdered sugar by the half-cup until you reach a desired consistency. If frosting becomes too thick, add Coca-Cola 1/2 tsp. at time. Spread frosting on warm cake.