Sour Cream Rhubarb Pie
["1 (9-inch) pie crust", "3 c. rhubarb, cut up", "1 1/2 c. sugar", "1 egg", "1/4 tsp. salt", "3 Tbsp. tapioca", "1 c. sour cream"]
["Place rhubarb in unbaked pie shell.", "Pour mixture over rhubarb and bake in a 450\u00b0 oven for 15 minutes, then reduce heat to 350\u00b0 for 35 to 40 minutes.", "Yields 6 to 8 servings."]
["crust", "rhubarb", "sugar", "egg", "salt", "tapioca", "sour cream"]