Mash the raspberries and strawberries together with the back of a fork or with a whisk. Fill the cavities halfway with the raspberry and strawberry mixture. Melt the dark chocolate in a microwave safe bowl and pour onto the raspberry and strawberry filled cavities till it is filled to the top.
Place pan on a flat surface in freezer and freeze overnight. Do not take out too early. When ready to unmold, fill a sheet pan with cold water and quickly dip the strawberry pan in the water to loosen the frozen berry treats. You may have to do this twice but do not leave pan in water as that could melt the treats too fast. Unmold treats quickly and place in a container. Freeze immediately until ready to eat.
Note: Add more berries to recipe if desired. We like to use whatever we have on hand. Optional: sprinkle granola or other toppings after pouring dark chocolate layer in cavities. This adds a nice crunch!
