1 Melt butter in a saucepan, stir in the brown sugar and the salt. Bring to a boil and boil for 2 minutes, stirring constantly. Remove from heat and add the milk, stirring all the while.
2 Return to heat and bring to a boil again. Remove from heat and allow to cool until lukewarm (approximately 20 to 25 minutes). Stir in the confectioners’ sugar and beat until smooth and cool enough to spread. You might need to add a few drops of milk if frosting gets too stiff.