3 c fresh or frozen blackberries, raspberries or mixture
6 Tbls sugar
1 Tbls Lemon juice
3/4 c Low-Fat Plain yogurt
Combine berries, sugar and lemon juice in a food processor; process until smooth. Add yogurt and pulse until mixed in. If using fresh berries, transfer the mixture to a medium bowl, cover and refrigerate until chilled, about 1 hour.
Transfer the berry mixture to an ice cream maker and freeze according to manufacturer's directions. (Alternatively, freeze the mixture in a shallow metal pan until solid, about 6 hours. Break into chunks and process in a food processor until smooth and creamy.) Serve immediately or transfer to a storage container and let harden in the freezer for 1 to 1 1/2 hours. Serve in chilled dishes.
Make Ahead: Store in an airtight container in the freezer for up to 1 week. Let soften in the refrigerator for 1/2 hour before serving.
Equipment: Ice cream maker or food processor
To freeze fresh berries: Wash berries and pat dry. Spread in a single layer on a tray, cover with plastic wrap and freeze until solid. Pack frozen fruit into zip lock bags, taking care to remove air from the bags. Freeze for up to 1 year.