Preheat the oven to 175°C/347°F. In a medium bowl, mix the sweet potatoes with the coconut oil and egg, season with salt, and add the optional ingredients.
Line a baking sheet with parchment paper.
Use your palms to shape the mixture into little flat bites, and line them on the sheet.
Bake for 15 minutes, then flip over and bake for 10 more minutes.
Remove from the oven and set aside for a few minutes before serving.