Line a mesh strainer with a piece of cheesecloth that’s been doubled over. Add the Greek yogurt and twist the cheesecloth tightly around the yogurt. Secure the top with a rubber band and place the strainer over a bowl. Chill in the fridge overnight. Discard the liquid that gathers in the bowl. Set the strained yogurt aside while you make the cookie crust.
Preheat the oven to 360°F and liberally grease a 12-inch cake pan.
In a medium mixing bowl, whisk together the flour, baking powder, and salt.
In another, larger mixing bowl, beat together the coconut oil and coconut sugar for 2 minutes. Mix in the maple syrup, egg, and vanilla.
Mix the dry ingredients into the wet ingredients just until combined. Don’t over-mix.
Press the cookie dough into the bottom of the prepared cake pan in an even layer. Bake for 10 minutes or until a toothpick inserted in the center comes out clean.
Allow the cookie crust to cool completely in the pan.
Beat together the Greek yogurt, maple syrup, and vanilla until smooth.
Once the crust has cooled completely, turn it out onto a serving plate. Spread the frosting over the top and arrange the fruit artfully over it.