Wash and pat dry the sweet potatoes. Poke holes all over each one and keep aside. Brush with olive oil mixed with salt.
You can precook the sweet potatoes in microwave for about 5 minutes. This will expedite the air frying or baking time.
For Air Fryer
Preheat Air fryer at 390 F or 200 C for 4 minutes. Put in the sweet potatoes.
Air fry for about 30-40 minutes till done (depends upon the size of the sweet potato). Check with a fork or knife that should go through easily.
If you have microwaved your sweet potato then air frying time reduces to 15 to 20 minutes at 390F or 200C.
For Oven
Preheat oven at 450 F for 10 minutes.
Line a baking tray with parchment and put your sweet potatoes on them. Put in the oven for about 45 minutes to an hour. Check for doneness.
Notes
1. Always choose sweet potatoes that are similar in size. This ensures that they are cooked at the same time. 2. The baking or air frying time will vary slightly with your model as well as the size of your potatoes. 3. You can serve them with butter/vegan butter, salt and pepper or sour cream/vegan mayo and chives if you love them savoury. 4. Butter/vegan butter with cinnamon and brown sugar is perfect for a sweeter treat. 5. They are a perfect healthy treat that even kids love.6. You can microwave the sweet potatoes for 5 minutes. This helps in reducing the air frying or baking time.