First, make the crust dough. Combine crust ingredients except butter in a mixing bowl. Stir to combine.

Use a pastry cutter or fork (or your fingers) to cut butter into dough. Dough will be crumbly. Wrap dough in cling wrap and refrigerate for an hour, or until cold.

When dough has chilled, preheat oven to 375 degrees Fahrenheit. Place dough between two sheets of parchment paper. Roll out dough into a circle that's 1/4 inch thick. Discard top piece of parchment paper. Keep dough on bottom piece of parchment paper and place on baking sheet.

Next, make the filing. Combine all filling ingredients and toss to coat berries.

Place filling on top of dough. Spread filling around, leaving an inch or so around the edges. Use bottom piece of parchment paper to help you roll up the sides of the dough.

Once edges are folded up, make egg wash. Whisk egg and brush on top of the folded up edges of dough.

Next, sprinkle coconut sugar on edges of dough.

Then, bake for 24 to 26 minutes or until edges are golden and filling is bubbly.

Finally, top with desired toppings and serve!