Aunt Theresa'S Butterscotch Pie
["1 c. brown sugar", "3 Tbsp. butter or margarine", "4 Tbsp. milk", "1 c. milk", "6 level Tbsp.flour", "1 egg yolk", "1 baked pie crust (9 inch)"]
["Melt butter. Add brown sugar and milk. Cook this mixture until thick and brown. The darker it is, the more butterscotch taste it has. Mix milk and flour together. Add egg yolk and mix. Stir this mixture into the first mixture, stirring constantly. Cook until thick and pour into baked pie crust. Makes 1 pie."]
["brown sugar", "butter", "milk", "milk", "egg yolk", "pie crust"]