Boil rhubarb for 7 to 10 minutes. Drain, and place in food processor. Place frozen berries on top of rhubarb, and puree. Add lemon juice. Pour mixture into 1-quart metal mold, and stir in ginger and Chambord. Freeze.
Nutritional Information:
1 Calories (kcal); 0g Total Fat; (0% calories from fat); trace Protein; trace Carbohydrate; 0mg Cholesterol; trace Sodium