Zest the orange into a large bowl. After you’re done zesting, cut it in half and juice the orange into a measuring cup. Strain the juice as you pour it into the bowl.
Add the egg and coconut sugar. Whisk until combined.
Add the almond flour, cocoa powder, baking powder, and salt to the bowl. Whisk until combined.
Add the mini chocolate chips and fold until they are incorporated into the batter.
Grease a 9 inch circle cake pan and add a circle piece of parchment paper.
Transfer the batter to the pan and spread it out in an even layer.
Bake for 30 minutes.
Allow the cake to cool in the pan for 15 minutes.
After it’s cooled a bit, slide a knife around the edges.
Place a plate on the top of the pan and turn it upside down. Give it a tap for the cake to release from the pan to be upside down on the plate.
Then, place a plate or cake stand on the bottom-side of the cake and turn it right-side up.
Sprinkle with powdered sugar and cut into eight slices.