Lemon Pie
["1/2 c. flour", "1 1/4 c. sugar", "1 c. boiling water", "1 Tbsp. butter", "1/3 c. milk", "3 egg yolks", "juice and rind of 2 lemons or 1/4 c. lemon juice", "baked pie shell"]
["Cook flour, sugar, boiling water and butter together until mixture thickens.", "Add remaining ingredients; mix and pour into baked pie shell."]
["flour", "sugar", "boiling water", "butter", "milk", "egg yolks", "lemons", "pie shell"]