Preheat the oven to 350 degrees
Using a stand mixer, cream together sugar and coconut oil then mix eggs in one at a time
Combine all remaining dry ingredients together except cocoa powder
Add to the area, mixture and combine well
Add the cocoa powder then mix again and let sit for 5-10 minutes
Pour batter into a greased 8x8 baking pan
Bake at 350 degrees for 30 minutes
Combine filling ingredients and mix until smooth and creamy
Spread filling mixture over cooled brownies and refrigerate for a few minutes to set while making chocolate topping
In a small saucepan, melt chocolate chips and butter
When completely melted, add mint extract and whisk
Let the chocolate cool for 30 minutes until barely warmed then spread over the brownies and filling
Chill thoroughly before cutting into squares