Pour the orange juice into an ice cube tray and freeze for 3 hours.
Put the frozen orange juice cubes and raspberries into the bowl of a food processor. Add the sugar and process until the mixture is the texture of snow, 45 to 60 seconds. If the mixture remains course in texture add 1 to 2 tablespoons of water. Serve immediately, or transfer to a freezer container and freeze for later.
Recipe courtesy of Sandra Lee