These are obscenely good, though you'll need one of those air fryers to make them with a reasonable amount of grease.

YOU NEED

• up to 2 lbs of sweet potatos
• 2T per pound, of peanut oil or bacon fat (something with Flavour)
• An excessive amount (1T per pound or more) of some spicy-ass seasoning you love, e.g. Montreal Steak seasoning, or Ms Dash, or sriracha, or Tabasco, or... 
• Any additional salt, to taste

YOU DO

• Wash the potatos
• Mandoline or julienne the potatos to 3mm sticks
• Put everything in the fryer and turn it on
• Every few minutes make sure the sticks are evently circulating, hit them with a wooden spoon if they're jammed up
• Take them out when they are about 50/50 brown/orange, might be 30-40 minutes depending on heat/quantity. Watch them at the end, they go fast between crispy and burny, if you smell a hint of smoke, stop.
• Remove quickly and spread out to cool, let them crisp up by not covering them

YOU WILL

• Be shocked if they last a day