Firstly, wash the sweet potatoes well, carefully removing all the dirt and soil residues they may have in the peel since we will use them with the peel and everything.
Then, cut the sweet potatoes into thin slices. Be aware of using a sharp knife since sweet potatoes are a bit tough to cut. Place the sweet potato slices on a baking tray, spray with avocado oil, and stir so that they are all well coated.
In an oven preheated to 400 ℉, bake the sweet potatoes for about 30 minutes or until tender to touch.
While the sweet potatoes are cooking, take three small oranges and, with a box grater, make the zest you will need to prepare the batter, the coverture, and to garnish these brownies.
To prepare the batter, add the baked sweet potatoes, a ripe banana, shredded coconut, cocoa powder, ground cinnamon, orange zest, and salt to a food processor. Mix everything until the ingredients are well combined.
Then transfer the batter to a bowl and add some walnuts that you can squish with your hands. And continue mixing well until the walnuts pieces integrate well with the dough. You can skip this step, but adding the walnuts at this point will give the brownies that crunchy texture that we all love.
Line an 8×6-inch glass baking dish (or similar-size mold) with parchment paper and spray with some avocado oil to prevent the brownies from sticking.
Transfer the batter to your parchment-lined baking mold and spread it into an even layer using a silicone spatula.
Bake on the center rack at 375℉ for 40-45 minutes, depending on the oven you are using. The brownies edges should appear slightly dry, and if you insert a toothpick into the center, it should come out mostly clean. Then, remove from oven and let cool in the mold for 30 minutes – 1 hour.
Lift out of the mold, keeping the parchment paper, and place on a plate.
Make the coverture by mixing some melted coconut oil, cocoa powder, orange zest, and honey. Mix all the ingredients well and pour over your brownies, making sure to cover the entire surface very well.
Top these brownies with some walnuts, raisins, and orange zest.
With a knife, cut into 12 portions without removing the parchment paper.
Put your brownies in the fridge and let them chill for a few hours until the coverture is solid. ⋆This step is essential since these brownies' texture is softer than the one prepared with flours, so when the coconut oil cools, it will give them more consistency and solidity. If you try to remove the parchment paper at this point, the dough might fall apart.
Remove the parchment paper, serve on a plate and Let's Eat!