Preheat the oven to 190C.
Peel and slice the potato into 2 cm cubes.
In a separate bowl, mix the orange rind, orange juice, ginger, salt and rice syrup to make the glaze.
Place the sweet potato in a baking dish.
Pour the glaze over the sweet potato.
Lay on a baking tray on baking paper and cook for 30 minutes turning occasionally.