Edith'S Lemon Meringue Pie(This Recipe Is Over 60 Years Old)  
["3 egg yolks (save whites)", "1 scant c. sugar", "3 heaping Tbsp. flour", "1 c. cold water", "1 c. hot water", "juice and grated rind of 1 lemon (more juice if desired for tartness)", "1 tsp. butter", "1 tsp. vanilla (for meringue)", "3 to 4 Tbsp. sugar (for meringue)"]
["Stir the sugar into the slightly beaten egg yolks, then add the lemon juice and grated rind.", "Mix well.", "Stir the flour in 1 spoonful at a time, stirring until mixture is smooth and free of lumps.", "Add the cold water, then the hot water; stir well.", "Place over double boiler and cook until mixture heavily coats the spoon, then stir in butter.", "Pour into baked 9-inch pie shell.", "Cover with meringue (whip egg whites, vanilla and sugar until stiff but not dry) and bake for 10 minutes at 350\u00b0 or until meringue is golden brown."]
["egg yolks", "sugar", "flour", "cold water", "water", "lemon", "butter", "vanilla", "sugar"]