In a medium bowl, whisk together the dry brownie mix and the cinnamon and stir in the chocolate chips. Set aside
In a small bowl, melt the coconut oil and whisk in the coconut milk
Stir the oil mixture into the brownie mix and stir to combine thoroughly. The brownie mix should form a thick dough that you should be able to roll with your hands. If it seems dry, add 2 Tablespoons coconut milk at a time until it is moist enough to roll but not too moist.
Roll cookie dough into 1-inch balls. You can press the top of the ball into turbinado sugar or you can skip this step if you want less sugar
Bake in the preheated oven for 15 minutes
Allow the cookies to cool on the pan for 10 minutes before removing from the pan so they can set up a bit