Preheat the oven to 350 degrees F. Line a 9 13-inch glass baking dish with parchment and grease the parchment.
Whisk the flour, cocoa, and salt together in a large mixing bowl.
Grind the almonds in a food processor until roughly chopped. Stir the nuts into the cocoa mixture.
Break up the chocolate and add the pieces to the food processor. Pulse just until coarsely chopped and stir into the cocoa mixture.
Wipe out the food processor; then add the oil, avocado, eggs, and sugars and proces until smooth.
Use a rubber spatula to transfer the avocado mixture to the bowl with the cocoa mixture; then gently fold the dry ingredients into the wet ingredients.
Pour the batter into the baking dish and bake for 35 minutes, until the batter has
just barely set in the middle. Allow to cool fully before slicing into 3 4-inch brownies.
Prep Time: 15 minutes .