Set your oven to 350°F (175°C) and line an 8x8-inch brownie pan with parchment paper to prevent sticking.
In a large bowl, combine the unsweetened applesauce, maple syrup, and vanilla extract. Stir well until fully blended.
In another bowl, whisk together the cocoa powder, almond flour (or whole wheat flour), and baking powder until well combined.
Slowly mix the dry ingredients into the wet mixture, stirring until it forms a thick, smooth batter.
If you’re adding dark chocolate chunks, fold them in now.
Gently pour the batter into the lined pan and use a spatula to smooth it out evenly. Pop it into the oven.
Bake for 25-30 minutes, or until a toothpick inserted into the center pulls out with a few slightly sticky crumbs.
Allow the brownies to cool completely in the pan before cutting—this helps them firm up and makes slicing much easier.
Slice into squares and enjoy your oil-free, healthy brownies.