Any berry combination of your choice can be used
2/3 cup sugar
1 cup blueberries
1 cup strawberries, hulled and sliced
1 cup raspberries
1/4 cup fresh lemon juice
1. Put sugar and 1/3 cup water in a small saucepan and bring to boil over high heat, stirring until sugar is dissolved. Set aside.
2. Combine blueberries, strawberries, raspberries, and lemon juice in a blender and purée until smooth, about 30 seconds. Add 1/3 cup simple syrup and blend just until combined. (Save remaining syrup for another use, such as sweetening iced tea.)
3. Transfer purée to popsicle molds and freeze 4 hours. Insert popsicle sticks and freeze an additional 4 to 6 hours, or until frozen solid.