Caramel Icing
["3/4 c. brown sugar", "1 c. heavy cream", "1 tsp. vanilla", "1 Tbsp. butter"]
["Cook the brown sugar and heavy cream on medium low heat in saucepan.", "Cook to soft ball stage on candy thermometer.", "Remove from heat and add vanilla and butter.", "Let set until cool enough to stick your finger in.", "Beat until thick."]
["brown sugar", "heavy cream", "vanilla", "butter"]