Passion Fruit Chiffon Pie
["1 (9-inch) pastry shell", "4 eggs, separated", "1 c. sugar", "1/2 tsp. salt", "1/2 c. Passion fruit juice (concentrated)", "1 Tbsp. unflavored gelatin", "1/4 c. cold water", "1 tsp. lemon rind, grated", "1/2 c. heavy cream, whipped"]
["Beat egg yolks until thick.", "Add 1/2 cup of the sugar, salt and juice.", "Cook until thick, beating constantly.", "Soften gelatin in cold water; add to egg yolk mixture and stir until dissolved. Add rind and cool.", "Beat egg whites until stiff, gradually beating in the remaining 1/2 cup sugar.", "Fold egg yolk mixture into stiffly beaten egg whites.", "Pour into baked pastry shell; chill until firm.", "Serve with whipped cream."]
["pastry shell", "eggs", "sugar", "salt", "fruit juice", "unflavored gelatin", "cold water", "lemon rind", "heavy cream"]