3. Use a fork to poke a few holes in your potatoes to prevent them from bursting.
4. Bake sweet potatoes for 45–60 minutes.1 Due to variation in potato size and ovens, you may need to cook them a little longer or a little less depending. You will know they are done when you can easily stick a fork or knife into them. It is normal for them to bleed a little sugar when they are thoroughly baked.
