Never Fail Caramel Frosting - cooking recipe

Ingredients

3/4 c. butter or margarine
3/4 c. sugar
3/4 c. firmly packed brown sugar
1 c. whipping cream
18 marshmallows, cut in half
3 c. sifted powdered sugar
1 Tbsp. vanilla

Preparation

Combine butter, sugar and whipping cream in heavy saucepan. Bring to a boil, stirring constantly, and boil 2 minutes.
Remove from heat.
Add marshmallows.
Stir until melted.
Add powdered sugar and vanilla.
Beat until spreading consistency.
Yield: Enough for one 3 layer cake.