Preheat the Oven: Start by preheating your oven to 350°F (175°C). Line an 8×8-inch baking dish with parchment paper or lightly grease it with non-stick spray.
Mix the Dry Ingredients: In a medium-sized bowl, whisk together the almond flour, unsweetened cocoa powder, baking powder, salt, and sweetener.
Mix the Wet Ingredients: In a separate, larger bowl, beat together the Greek yogurt, eggs, unsweetened applesauce, melted coconut oil, and vanilla extract.
Combine the Dry and Wet Ingredients: Add the dry ingredients to the wet ingredients and stir until well-combined.
Fold in the Optional Add-ins: If you’re using chocolate chips or nuts, fold them into the batter at this stage.
Bake the Brownies: Pour the brownie batter into the prepared baking dish and bake for 25-30 minutes.
Cool and Serve: Once baked, remove the brownies from the oven and allow them to cool in the pan for about 10 minutes.