In a large bowl mix chocolate chips, powdered sugar and cocoa powder.
In a small saucepan butter, coconut milk and vanilla over medium heat. Keep cooking until butter is melted and small bubbles start to appear at the surface.
Immediately pour the butter mixture over the chocolate mixture.
Don't touch it! Let the butter mixture sit on the chocolate mixture for 3 minutes, allowing it to naturally melt down to the chocolate chips.
With a spoon, stir the mixture together. The batter should be not be easy to mix and will take some arm strength! Keep mixing until all ingredients are combined.
Add parchment paper or grease the bottom of a 8x8 pan. Pour batter into the pan. You might need to use a spoon to scoop it out.
Using a spatula, gently pat down the top so it's even.
Now time to add your toppings (optional). Lightly sprinkle flaky salt, shredded coconut or nuts on top. Use the spatula one more time to gently pat down.
Place pan in refrigerator and let cool for at least 4 hours. I often let this set over night.
Once removed from the refrigerator, allow to sit for 10 minutes before using a knife to cut into small squares.