Line a square baking pan (8x8) with parchment paper and preheat your oven to 350 degrees.
Place unsweetened baking chocolate in a large microwave safe bowl and heat on high in increments of 30 seconds, stirring in between, until melted. Set aside.
In a separate bowl, combine the cacao powder, almond flour, baking soda, salt and coconut sugar, mix well and set aside
To the melted baking chocolate, add the maple syrup, olive oil, and vanilla extract and whisk until smooth. Add one egg at a time, whisking to incorporate well.
Transfer the dry mixture into the wet, stirring with a silicone spatula or wooden spoon until a thick batter forms. Stir in the chopped dark chocolate or chocolate chips, then transfer batter into prepared baking pan.
Bake for 22-25 mins or until set in the center. Cool completely on a wire rack before cutting into squares and serving. Makes 16 brownies.
Optional: drizzle extra melted dark chocolate over the top just before serving. Enjoy!