Preheat oven to 350ºF and spray a square baking pan with non-stick cooking spray.

In a large bowl, combine buckwheat flour, cocoa powder, baking powder, baking soda, and sea salt. Whisk together and set aside.

In a medium bowl, combine eggs, vanilla extract, cooked mashed beets, coconut oil, maple syrup, and milk. Whisk together.

Add wet ingredients to the large bowl of dry ingredients. Mix together until combined.

Pour into greased square pan. Sprinkle chocolate chips on top. Bake for 25-30 minutes or until toothpick pulls cleanly from the middle of the batter.

Let cool before cutting. Cut into squares and enjoy. Brownies can be stored in an airtight baking container on the counter or in the fridge.