Refreshing as a first course or as a dessert.
Bring water to a boil in soup kettle. Stir in tapioca and cook until mixture is clear, stirring frequently. Add grape and pineapple juices, bring to a boil, and add sugar, lemon rind, and cinnamon. Reduce heat and simmer 10 minutes. Remove from heat and add raspberries and sherry. Cool, chill, and serve cold.