1 cup brown sugar
½ cup granulated sugar
Dash of salt
1/3 cup milk
2 Tbsp. butter or margarine
1 Tbsp. white Karo syrup
½ tsp. vanilla
Mix all ingredients except vanilla in a saucepan. Bring slowly to the boiling point, stirring constantly. Boil for 1 minute. Cool to lukewarm. Add ½ tsp. vanilla. Beat until thick enough to spread.
Mother used to always frost spice cake with this frosting.