Lemon Meringue Pie
["1 c. sugar", "3 Tbsp. flour", "pinch of salt", "3 egg yolks", "1/3 c. lemon juice", "1 c. milk", "1 baked pie shell", "3 egg whites", "3 Tbsp. sugar", "1 tsp. lemon extract"]
["Beat egg whites and gradually beat in sugar and lemon extract. Bake at 350\u00b0 until browned a little."]
["sugar", "flour", "salt", "egg yolks", "lemon juice", "milk", "shell", "egg whites", "sugar", "lemon extract"]