Puree your strawberries and spoon a thin layer into the bottom of each mold cavity. Freeze for 1 hr or until firm.
Spoon in your yogurt layer next. Spread evenly over the frozen strawberry layer. Freeze again (1hr) until firm.
Puree the blueberries, then finish with a top layer of blueberry puree. Freeze one final time (1 hr) until solid.
Once fully frozen, remove treats from mold and store in a freezer-safe container for up to 3 months.
Notes
* May substitute watermelon for the strawberries.*You may need to add water to the berries when puréing, especially if they are frozen. Start with about 1/4 cup and add more if needed.