Ingredients

8 cups fresh or frozen raspberries, thawed1-1/2 cups sugar2/3 cup cider vinegar2-1/2 cups cold water, divided2 liters ginger ale, chilled

Preparation

In a large saucepan, crush the berries. Stir in sugar, vinegar and 1/2 cup water. Bring to a boil; reduce heat. Simmer, uncovered, for 20 minutes. Strain to remove seeds; refrigerate. Just before serving, stir in ginger ale and remaining water. Serve over ice.