Heat oven to 350 and lightly oil an 8x8 inch baking dish.

In a medium bowl, combine berries, arrowroot powder, and 1 1/2 tsp vanilla extract. Mix well. Pour into prepared pan.

In a food processor, pulse the walnuts until they are broken up, but not the texture of flour. Add the oats and salt and pulse 10-15 times. Transfer oat mixture into a medium bowl and stir in the coconut. Add maple syrup and 2 tsp vanilla. Stir until combined. Add the coconut oil, stir. Place granola mixture on top of berries in the prepared pan.

Bake for 40 minutes or until the oats are golden brown and the juices from the fruit are bubbly. Serve with vanilla ice-cream or whipped honey topping (recipe in notes section below).