Chocolate Blender Frosting - cooking recipe

Ingredients

1 c. evaporated milk
1 1/2 tsp. vanilla
1 1/2 c. sugar
5 blocks chocolate, cut in small pieces
6 Tbsp. margarine

Preparation

Put in blender in order given.
Blend on medium speed until blended.
Blend on high until thick and creamy.
Stop and stir frequently.