Preheat your oven to 350F.
In a small bowl or measuring cup, melt 1/4 cup of dark chocolate until smooth. I do this in the microwave using 30 second increments and stirring each time.
Add the olive oil to the melted chocolate and stir until well combined.
In a large bowl, whisk together the eggs, vanilla extract, coconut sugar and brown sugar. Add in the olive oil+dark chocolate mix and whisk until well combined. Set aside
Use a small blender to blend your oats in to oat flour (if they aren't already).
In another bowl, whisk together the almond flour, oat flour, cocoa powder, baking soda and salt.
Gradually add the dry ingredients in with the wet, mixing well until no dry flour remains.
Add in the cup of chocolate chips and fold it into the batter.
In a parchment lined 8x8 baking sheet, add the batter and smooth it out evenly.
Bake the brownies at 350F for 25-30 minutes. When the brownies are out of the oven, give the baking sheet a few smacks on the counter to help the brownies collapse (this will help them become dense and fudgey).
Let the brownies cool for 15 minutes before slicing and serving!