Preheat oven to 356F (180C) and prepare a brownie 8x8 inch (20x20cm) baking pan (see recipe card notes).
Add the chopped chocolate and coconut oil to a microwave safe bowl. Heat in 20s increments and mix until completely melted.
Using a stand mixer or a hand mixer, whisk the eggs with the butter until fluffy and doubles in volume (about 5 minutes).
Combine the egg mixture with the melted chocolate whisking on low until fully incorporated.
Using a silicone spatula, fold the vanilla, cacao, salt, and almond flour into the chocolate mixture.
Stir in chocolate chips (if using) and pour the brownie mix into the prepared 8x8 brownie pan.
Bake for 22 minutes, or until toothpick comes out with some chocolate crumbs (do not overbake or the brownies will be dry and crumbly, as opposed to fudgy.
Let it cool, slice and serve.