Marshmallow Brownies

These were easy to make and certainly were a hit with my family.  I never did get a great picture of them.  They disappeared too fast!

Marshmallow Brownies
1 package brownie mix (I love the Ghirardelli mix you get at Costco)
Ingredients to make the brownie mix as directed on package
Miniature marshmallows
Frosting:
1/2 cup butter
4 T. cocoa powder
3 T. milk
3 T. water
3 1/2 cups powdered sugar
2 tsp. vanilla

Prepare the brownies in a 13x9 pan according to the package (I actually always spray the pan, then line it with baking paper or parchment. Then you can just lift the paper out when they are all done and cut them.)  Bake them according to package directions.  Take them out of the oven and cover them with miniature marshmallows.  Put them back into the oven for a few mintues until the marshmallows puff up and just start to brown.  Take them out and let them cool completely.  While they are cooling, prepare the frosting:

Frosting
In a saucepan, stir together the butter, cocoa, milk and water.  Bring to a boil.  Remove from heat.  Immediately add the powdered sugar and vanilla.  Beat well.  Pour frosting over the brownies while frosting is still hot.  Allow to cool.  Cut with a plastic knife.