Blueberry Sauce 2 cups fresh or frozen unsweetened blueberries, thawed and drained 1/4 cup water 2 tablespoons sugar 1/2 teaspoon ground cinnamon 1. In a small nonreactive saucepan, combine the ingredients and simmer over low heat until the fruit has softened. 2. Serve warm on pancakes, crepes, waffles, or as a side.