Rhubarb Coconut Pie
["3 egg yolks, slightly beaten", "3/4 c. sugar", "1/4 tsp. salt", "1/4 c. water", "4 Tbsp. flour", "2 Tbsp. melted butter", "4 c. fresh rhubarb, cut in 1/2-inch pieces", "1 unbaked 9-inch pie shell", "3 egg whites", "1/3 c. sugar", "3/4 c. shredded coconut"]
["Combine egg yolks, 3/4 cup sugar, salt and water.", "Add flour and butter, blending well.", "Add rhubarb and mix thoroughly.", "Turn into unbaked pie shell.", "Bake in hot oven (425\u00b0) for 45 minutes or until filling and crust are done."]
["egg yolks", "sugar", "salt", "water", "flour", "butter", "fresh rhubarb", "shell", "egg whites", "sugar", "shredded coconut"]