1. Combine the strawberries, raspberries, sugar, water, and lemon juice in a large bowl. Let stand at room temperature, 1 hour, stirring occasionally.
2. Transfer the strawberry mixture to a blender or food processor. Add the yogurt and puree. Transfer to a bowl and refrigerate 2 hours or overnight.
3. Pour strawberry mixture into an ice cream maker and freeze according to manufacturers directions. Frozen yogurt can be served immediately with a soft texture or transferred to an airtight container and placed in the freezer for several hours for a firmer texture. If placed in the freezer remove and let stand at room temperature for 15 minute before serving.

Amount Per Serving