Peel the butternut squash and cut it in half (width wise) to separate the neck from the rounded bottom. Scoop out the seeds from the bottom and discard.
Slice the squash into ¼" to ½" planks and then into fries.
Add the fries to a large mixing bowl with the garlic powder, smoked paprika, thyme, salt, cornstarch and olive oil. Mix until the fries are evenly coated. Add more cornstarch if needed and toss again.
Preheat the air fryer to 400 degrees Fahrenheit. When the air fryer is preheated, add a layer of butternut squash fries. Do not overcrowd the air fryer. Air fry to 18 minutes, shaking the air fryer basket halfway though cooking.
Remove the fries from the basket when the timer goes off. Repeat until all the fries are cooked. Garnish with parsley, serve with ketchup and enjoy!
Notes
For crispy fries make sure NOT to overcrowd the basket. To avoid overcrowding, add the fries to the basket one layer at a time. Try to minimize overlapping.
These fries are best served fresh! If you work in batches I recommend serving them immediately and throwing in the next batch of fries as needed.
If you don't want to fry everything up at once, save the uncooked butternut squash in the fridge until ready to use. Simply add another tablespoon of cornstarch before frying them.