Gotta-Have-It Brownies on BakeSpace.com

Ingredients

• For Brownies:
• 1 cup soft butter
• 2 cups sugar
• 1/3 cup cocoa
• 4 eggs
• 1 1/2 cups flour
• 2 tsp. vanilla
• 1/4 tsp. salt
• 1 1/2 cups chopped nuts (optional)
• 1 lb. mini marshmallows
• For Frosting:
• 1 2/3 cups powdered sugar
• 1/2 cup butter
• 1/3 cup canned evaporated milk