1 c. butter
1 lb. (2 1/4 c.) brown sugar, (light), packed
Dash of salt
1 c. light corn syrup
1 tsp. vanilla
1- 15 oz. can sweetened condensed milk

Melt butter in heavy sauce pan. Add brown sugar and salt. Combine thoroughly. Blend in corn syrup. Gradually add condensed milk, stirring constantly. Cook and stir over medium heat until candy reaches firm ball stage, about one half hour. Remove from heat and add vanilla. Pour into well buttered 8 x 12 in. glass pan. Cool thoroughly and cut into squares.