Preheat your oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
In a large mixing bowl, combine the mashed sweet potato, almond butter, and maple syrup until smooth.
Add the cocoa powder, oat flour, vanilla extract, baking soda, and salt. Mix until a thick batter forms.
Fold in the chocolate chips if using.
Spread the batter evenly into the prepared pan.
Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
Allow the brownies to cool completely in the pan before slicing.