Easy Penuche Icing
["1/2 c. butter", "1 c. brown sugar, packed", "1/4 c. milk", "1 3/4 to 2 c. sifted confectioners sugar"]
["Melt butter in saucepan.", "Add brown sugar.", "Boil over low heat for 2 minutes, stirring constantly.", "Stir in milk.", "Bring to boil stirring constantly.", "Cool to lukewarm.", "Add confectioners sugar.", "Beat until thick enough to spread."]
["butter", "brown sugar", "milk", "confectioners sugar"]