Preheat the oven to 425 degrees. Coat a muffin tin with coconut oil cooking spray.
Combine the flour, cinnamon, pumpkin pie spice, baking soda, and salt together in a large mixing bowl.
In another bowl, whisk together the pumpkin puree, coconut oil, white sugar, brown sugar, eggs, milk, and vanilla until well combined.
Gradually pour the pumpkin mixture into the flour mixture and stir until just combined.
Spoon the batter evenly between the 12 muffin tins.
Sprinkle the top of each muffin with coarse turbinado sugar.
Place into the oven and bake for 5 minutes.
Reduce the heat to 350 degrees without opening the oven door and continue cooking the muffins for 13-15 minutes or until a tester inserted into the center of a muffin comes out clean.
Remove from the oven and allow to cool for a few minutes before moving them to a cooling rack.