Preheat oven to 350°F.
Line pan with parchment paper, letting some paper hang over the edge to help you remove the bars after baking.
In a mixing bowl, combine the dry ingredients: oats, shredded coconut, baking powder, salt, and cinnamon.
In a separate bowl, combine the wet ingredients: Maple Syrup (or raw honey), eggs, milk, and vanilla extract.
Add wet ingredients into dry ingredients, mix, and let set for 20 minutes. This allows the oats to absorb the flavor. It is also a good time to clean up and put away anything you are finished with or turn on the oven if you forgot!
Fold in the chocolate chips or whatever addition you choose. Spread mixture into the prepared pan.
Bake in the oven for about 45 minutes, or until the edges are golden brown, checking at 35 minutes.
Allow to cool completely before slicing. Cut into small bars and store in an airtight container in the fridge for up to 4 days.