Fresh Rhubarb Pie
["4 to 5 c. fresh rhubarb *", "1/2 c. flour", "1 1/3 to 2 c. sugar **", "pastry for two-crust pie"]
["Mix rhubarb with flour and sugar.", "Dot with 1 1/2 tablespoons butter.", "Pour in pastry-lined pan and top with crust which has slits cut in it.", "Bake until brown at 400\u00b0, 40 to 50 minutes."]
["fresh rhubarb", "flour", "sugar", "pastry"]