Butterscotch Pudding

¾ c. brown sugar2 tbsp. cornstarch¼ tsp. salt2 cups milk2 slightly beaten egg yolks or 1 well beaten egg2 tbsp. butter or margarine1 tsp. vanilla In a saucepan, blend sugar, cornstarch and salt; add milk. Cook and stir over medium heat until thickened and bubbly. Cook and stir for 2 more minutes; remove from heat….