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

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.