01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving overhang for easy removal.
02 - Whisk together almond flour, cocoa powder, fine sea salt, and baking powder in a medium bowl.
03 - In a large bowl, whisk melted butter, granulated sugar, brown sugar, eggs, and vanilla extract until smooth and glossy.
04 - Add dry ingredients to wet mixture and stir until just combined; avoid overmixing.
05 - Fold chopped chocolate or chocolate chips into the batter evenly.
06 - Pour batter into prepared pan and smooth top with a spatula.
07 - Evenly sprinkle flaky sea salt over the batter surface.
08 - Bake for 22 to 25 minutes, or until center is set and toothpick comes out with moist crumbs.
09 - Allow brownies to cool completely in pan on a wire rack before lifting out and slicing.