Penuche Frosting - cooking recipe

Ingredients

1 1/2 c. brown sugar, packed
1/4 tsp. salt
1/4 tsp. and 2 Tbsp. margarine
1/4 tsp. and 2 Tbsp. milk
3/4 tsp. vanilla

Preparation

Combine all ingredients except vanilla.
Bring to a rolling boil, stirring constantly for 1 minute.
Remove from heat and beat until lukewarm.
Add vanilla.
Beat until thick enough to spread. If it becomes too thick, add about 1 teaspoon of cream.
Icing for 2 layer cake.