1 c. butter
1 lb. brown sugar (2 1/3 c.)
Dash of salt
1 c. white corn syrup
1 (15 oz.) Eagle Brand sweetened condensed milk
1 tsp. vanilla

Melt butter, add brown sugar and salt; stir in milk and corn syrup and cook over medium heat, stirring all the time until it forms firm ball stage - 236 degrees. Take off of heat and stir in vanilla. Pour in generously buttered 9 x 9 inch pan. Cool. Best if left all day before cutting in squares.