Butterscotch Pie
["1 ready bake crust", "1 1/2 c. brown sugar", "3 egg yolks", "3 Tbsp. flour", "3 c. sweet milk", "1 tsp. butter", "1 tsp. vanilla flavoring"]
["Mix flour and sugar and then add egg yolks. Pour in milk a little at a time until well mixed. Put on stove and stir until it is good and thick. Stir in butter. Pour into a ready bake crust. Let set until cool."]
["bake crust", "brown sugar", "egg yolks", "flour", "sweet milk", "butter", "vanilla flavoring"]