Place a sheet of parchment paper on a baking sheet with sides and set aside. No need to grease it with butter or spray it with oil to stick the paper to it. The yogurt will weigh it down later.
In a small mixing bowl, add yogurt and stir through chocolate chips.
Dollop yogurt mixture onto the baking sheet with the parchment paper. Spread it out in an even layer right to the edges with a rubber spatula or the back of a spoon.
Slice strawberries, or dice them if you prefer them smaller which is great for kids.
Top yogurt with sliced strawberries and then the bluebberries.
Sprinkle over granola.
Place baking sheet into your freezer and freeze for 4+ hours or overnight until solid and completely frozen.
Remove from freezer, quickly lift it out of the baking sheet using the sides of the parchment paper and place it onto a chopping board.
Using a large sharp knife, slice it into bars or random chards, like a chocolate bark.
Enjoy a few pieces or immediately place into a freezer-friendly airtight container, with a sheet of parchment paper between any layers to avoid sticking, and place it back into the freezer. The yogurt will begin to melt quite quickly being at room temperature.
Enjoy!
Notes
Yogurt: Full-fat Greek yogurt contains less water than regular yogurt, therefore fewer ice crystals form when it’s frozen. Full-fat regular yogurt still works great. To make it dairy-free, use plain or vanilla coconut yogurt. I haven't tested this using soy yogurt.
Use parchment paper or silicone mat: To prevent the bars from sticking to the baking sheet, line it with parchment paper or a silicone mat. This makes it easier to remove it once it's fully frozen.
Use fresh, not frozen strawberries: It's easier to slice fresh strawberries than it is to slice frozen strawberries.
Slice it into bars straight from the freezer: Once frozen, take it out of the freezer and immediately cut it into bars. Do not let it sit for too long as it will begin to melt, making it difficult to slice.
Store yogurt bars in a freezer-friendly airtight container or zip-lock bags. Keep them in the freezer for up to 2 weeks.
If you have multiple layers of the bars in one container, separate them with a sheet of parchment paper to prevent the pieces from sticking together.These are best enjoyed within a couple of weeks of being stored. While it can be stored for longer, the texture and taste may deteriorate over time.