First, preheat your oven to 375 degrees Fahrenheit. Line a 9 inch square pan with parchment paper.

First make the shortbread crust. Combine all crust ingredients in a mixing bowl. Stir until a cookie dough texture forms.

Press ¾ of this mixture into an even layer in the lined pan. Reserve the remaining ¼ for the topping. Use a fork to poke holes in the crust.

Bake the crust for 8 minutes. Remove from the oven.

In a clean bowl, combine all of the filling ingredients. For a smoother texture, mash the berries. Stir until combined.

Transfer this fruit mixture into the pan. Smooth into an even layer.

Sprinkle the remaining crust on top of the fruit.

Bake for 32 to 36 minutes, or until the topping is lightly golden brown and the filling is bubbly around the edges.

Remove from the oven. Cool for 1 hour in the pan then carefully transfer to a wire rack to finish cooling.

Finally, once fully cooled, slice into bars and enjoy!