Combine the flaxseed meal and water in a small bowl. Stir thoroughly and set aside.
Combine the cocoa powder, sugar, maple syrup, coconut oil, oat milk and vanilla in a small mixing bowl. Stir to combine.
Add the flaxseed mixture. Stir to combine.
In a larger mixing bowl, combine the flour, baking powder and salt. Mix well.
Add the chocolate mixture to the dry ingredients and mix thoroughly. Stir in the chocolate chips.
Pour the brownie batter into a well-greased 8x8 baking dish. I like to use a small amount of coconut oil to grease the dish.
Bake for ~20 minutes on the middle rack. Check for doneness by inserting a toothpick into the brownies. If it comes out clean, the brownies are done. Allow to cool before serving.