Steam, boil or bake your sweet potato but make sure it isn't too watery. You can put it back into the hot pan once drained for more moisture to evaporate. Mash the potato and add the other ingredients, set aside to cool.
Preheat oven to 400F. Line a baking sheet with parchment paper.
Mix panko with olive oil and salt and pepper and fry up in a small pan until golden brown. Let cool.
Roll the sweet potato into about 20 balls and roll into the panko crumbs.
Place on lined baking sheet and bake for 20-25 min. or until crispy.