Preheat oven to 350°F (177°C). Line an 8 x 8 inch pan with parchment paper.
Add sweet potato puree and chocolate chips to a large microwave-safe bowl (the chocolate chips should be covering the sweet potato). Heat in the microwave in 15-30 second intervals, stirring in between with a spatula, until the chocolate is completely melted and smooth and the sweet potato puree is fully incorporated into the melted chocolate. You can also melt the chocolate on the stove using the double boiler method.
Add in the eggs. Whisk in the eggs until they are completely incorporated with the chocolate and no egg streaks remain. If desired, stir in an additional 1/4 cup chocolate chips.
Pour batter into the prepared pan. Bake for about 25 minutes or until the surface of the brownies looks cooked. A toothpick inserted should also come out mostly clean. Let the brownies cool.
Let brownies cool fully before cutting. Because these brownies are very fudgy, I recommend running a large sharp knife under hot water, wiping the blade dry and then cutting into the brownies to achieve clean cuts. Wipe the knife clean before each cut.
Notes
Uneaten brownies should be stored in the fridge. I recommend reheating them (such as in the microwave) before eating.
I made these with Kirkland's dairy free semi-sweet chocolate chips.
Estimated nutrition does not include additional chocolate chips mixed in.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.