Preheat oven to 350℉. Line an 6 inch round cake pan with parchment paper.
In a large bowl, whisk together the eggs, maple syrup and vanilla. Next, whisk in the sweet potato until fluffy. Sift in the cacao powder and salt. Mix everything until batter is super smooth, fluffy and has the texture of mousse. Then, transfer to batter to your cake pan and spread out evenly. Tap the pan on your counter a few times to eliminate any bubbles. Bake for about 1 hour.
VERY IMPORTANT: Allow the cake to set and cool in the pan for at least 2 hours. I personally allow the cake in pan to cool on a wire rack for 30 minutes and then transferred to my fridge and chilled for 2 more hours (or overnight).
Frosting:
In mini pot, melt your chocolate chips. Transfer to a small bowl and add in the heavy cream. QUICKLY, whisk the two together vigorously until thick and smooth. Spread this out evenly on top of the cake. Shave some chocolate for aesthetic.