Preheat oven to 400°F (200°C).
Pierce sweet potato with a fork and roast for 45-60 minutes.
Let sweet potato cool, then peel and mash.
Reduce oven temperature to 350°F (175°C).
Mix mashed sweet potato, melted coconut oil, and maple syrup in a bowl.
Beat in eggs and vanilla extract.
Whisk almond flour, cocoa powder, baking soda, salt, and cinnamon in a separate bowl.
Fold dry ingredients into wet ingredients until combined.
Stir in half of the chocolate chips.
Line an 8x8 inch pan with parchment paper.
Pour batter into the pan and spread evenly.
Sprinkle remaining chocolate chips on top.
Bake for 25-30 minutes until a toothpick comes out mostly clean.
Let cool completely before cutting.