Caramel Icing - cooking recipe

Ingredients

2 c. light brown sugar
1 c. white sugar
1 stick margarine
3/4 c. Carnation milk
1 tsp. vanilla

Preparation

Mix all ingredients, except vanilla.
Bring to a boil, then cook on low heat until it forms soft ball in cold water.
Cool, then heat until thick enough to spread on cake.
Add a little powdered sugar if it does not get thick enough.
Also, add vanilla.