Recipe courtesy of Williams-Sonoma. Adapted from New Healthy Kitchen Series, “Desserts”, by Annabel Langbein (Simon & Schuster, 2006).

Purple and blue fruits are among the richest in disease-fighting antioxidants. Blueberries in particular have been studied extensively for their ability to improve memory and brain function, and blackberries share many of the same characteristics. At their peak in summer, blackberries are delicious in this recipe, where they are transformed into a granita and layered with sweetened whipped cream and yogurt.

Notes: All kinds of acidic fruits can be added to a sugar syrup base for granita. Lemon or lime juice works well with a little mint. Store the granita in a sealed container in the freezer for up to 4 weeks. Serve without the cream if desired.