Preheat the oven to 340°F (170°C) and line a round baking mold with parchment paper or grease it with oil. I used a 5 inch (13 cm) springform pan.
Add to a blender or food processor cooked sweet potato, cottage cheese, egg, maple syrup and vanilla extract.
Blend on high speed just until smooth and free of lumps. Do not over-blend the batter.
Transfer the sweet potato mixture to your prepared baking mold, spreading it out evenly.
Bake in the middle rack of a hot oven for 35-40 minutes, or until the cheesecake has set and is cooked inside.
Let cool to room temperature, then refrigerate for at least 2 hours before serving.