Rasberries, blackberries and blueberries flavored with a touch of orange create this light and airy dessert.
In a small saucepan, combine raspberries, blackberries, blueberries, orange juice and sugar. Bring to a boil over high heat, then reduce heat to medium-high and simmer for 10 minutes. Carefully add fruit mixture to food processor and puree until smooth. Strain through a fine mesh strainer and place in the freezer for about 50 minutes or until very cold.
Place thawed whipped topping in a medium-size bowl; fold in yogurt and cooled fruit puree until just combined. Serve immediately. Garnish with additional berries, if desired.