Ingredients:
Bananas - 2, peeled and sliced
Pineapple juice - 1 1/2 cup
Low-fat Vanilla Yogurt - 2 cups
Fresh or frozen Raspberries - 1 cup

Method:
1. On a baking sheet, place the bananas in a single layer and freeze until hard.
2. Place the frozen bananas in a blender jar along with pineapple juice, yogurt and raspberries.
3. Process until smooth and serve immediately in pre-chilled glasses.