In a high speed blender, blend the water and dates together until smooth.
Mix coconut oil, "date water", 2 eggs, coconut sugar, and vanilla extract together in a large bowl.
In a small bowl mix the cocoa powder, baking powder, sea salt, and millet flour.
Add the dry to the wet and mix well.
Add batter to whatever baking dish you will be using (spray with oil). I'm guessing 9 x 9 pan if you are going a full pan brownie route. I will have to update that later if I try it.
Bake at 350 until toothpick comes out clean. Approx 13-18 minutes.