Rhubarb Pie
["3 Tbsp. tapioca", "1/4 tsp. salt", "4 c. rhubarb, cut in pieces", "1 1/2 c. sugar", "1 Tbsp. butter, melted", "1 tsp. grated orange rind or 1 Tbsp. crushed pineapple"]
["Combine first 5 ingredients.", "Let stand 15 minutes.", "Pour into unbaked pie crust; cover with second crust.", "Bake 40 to 45 minutes in a 425\u00b0 oven."]
["tapioca", "salt", "rhubarb", "sugar", "butter", "orange rind"]