From the box of S.H. of Marshall, Missouri.
Carmel Icing
3 tsp. butter
6 Tbsp. brown sugar
6 Tbsp. white sugar
1/2 cup sweet cream
9 marshmallows
1 tsp. vanilla
1/2 cup powdered sugar
Mix sugar, butter, cream. Bring to boil for two minutes; add marshmallows. When melted, add sugar.