Combine the almond meal, cocao powder, maple syrup, oil, sea salt, and mint extract into a mixing bowl and stir to combine. Once a dough has formed, press it into a parchment paper lined 9x5 loaf pan. Place the pan into the freezer while making the avocado center.
For the Avocado Center
Place all the ingredients - the avocado, maple syrup, cashew butter, salt, mint leaves, and mint extract into a food processor and blend until creamy and smooth.
Spread the avocado layer onto the frozen chocolate base and return to the freezer for 3-4 hours to set.
For the Chocolate Coating
Melt the chocolate chips over a double boiler and spread over the frozen avocado layer. Return to the freezer to firm up for another 2-4 hours or overnight.
Notes
I haven't tried it, but I think if you wanted to leave the mint leaves and mint extract out, it would still be delicious!