Chocolate Masrhmallow Brownies by six sisters

1 cup butter, softened to room temp
2 cups sugar
1/3 cup cocoa
4 eggs
1 1/2 cups flour
1 tsp salt
2 tsp vanilla
1 (10 oz) package of miniature marshmallows

Frosting:
1 stick butter, softened
2 tablespoons milk
1 teaspoon vanilla
3-4 Tablespoons cocoa
3 cups powdered sugar

Directions:
Brownies:
Mix butter, sugar and cocoa.
Beat together and add 4 eggs, one at a time, mixing after eac h one.
Add flour, salt and vanilla and mix well.
Spread on large half sheet baking pan that has been lightly greaasted about 18 x 13.
Bake 22-25 minutes at 350
Remove from oven and cover entire top with 1 package of marshmallows.
REturn to oven for 3 minutes until marshmallows are soft and puffy
Cool and fromt with frosting.
Frosting:
Mix all ingredients with a hand mixer unitl smooth.
Add more powdered sugar or milk until you reach desired consistency and spread on top of bars.