Quick Caramel Icing
["1 c. light brown sugar, firmly packed", "1/8 tsp. salt", "2 Tbsp. margarine or butter", "1/3 c. cream or milk"]
["Cook, stirring, until sugar is dissolved, then cool, without stirring, until mixture forms a soft ball.", "(Drop small amount in cold water to check.)", "Cool to lukewarm."]
["light brown sugar", "salt", "margarine", "cream"]