Caramel Icing - cooking recipe

Ingredients

3 teaspoons margarine
6 teaspoons sugar
6 teaspoons brown sugar
1/2 cup evaporated milk
10 large marshmallows
2 cups powdered sugar
1 1/2 teaspoons vanilla flavoring

Preparation

Mix first 4 ingredients in medium sauce pan, bring to boil cook stirring for 2 minutes.
Remove from heat, stir in marshmallows.
Beat in powdered sugar and vanilla.