First, preheat the oven to 350 degrees Fahrenheit. Line an 8 inch square pan with parchment paper.
In a large mixing bowl, add the mashed sweet potatoes, nut butter, cocoa powder, protein powder, and maple syrup. Stir until combined.
Then, fold in the dark chocolate chips.
Transfer the batter to the lined pan. Smooth into an even layer.
Bake for 18 to 21 minutes, or until a toothpick inserted comes out with only moist crumbs.
Finally, remove the pan from the oven. Allow the brownies to cool before slicing and serving.
