16 oz (about 4 cups) frozen berries
5 tbsp sugar
4 cups nonfat plain yogurt, chilled
6 tbsp sugar
In a medium saucepan, combine the berries and the 5 tbsp of sugar. Cook over medium heat, stirring, until berries are broken down and a syrup forms.
For a smoother frozen yogurt, puree the berries and juices in a food processor or blender.
Strain out any seeds and let berries cool to room temperature.
Combine the berry puree with the 6 tbsp of sugar and the yogurt, straight from the fridge.
Chill until the whole mixture is cool, then churn in an ice cream maker.
Store in an airtight container and keep in the freezer.