Wash the potatoes thoroughly, dry and peel. Grate the potatoes using the largest side of a box grater into a large bowl.
Cover the grated potatoes in cold water for about 30 minutes. After soaking, drain and rinse the potatoes until the water runs clear.
Using cheesecloth or kitchen towel, squeeze as much water out of the potatoes as possible.
For Hash Brown Patties: Place the potatoes in a medium bowl. Add the garlic powder, onion powder, all-purpose flour, egg, oil, salt, and black pepper and mix well.
Line the air fryer tray with perforated parchment paper*. Shape the potato mixture into 2½-inch patties and place on the parchment paper. Air-fry at 360°F for 12 minutes, flipping halfway through. Cook until the edges are golden brown. Serve hot.
For Loose Hash Browns: place the grated, dried potatoes into a medium bowl and toss with the garlic powder, onion powder, paprika, salt and oil to thoroughly combine.
Line the air fryer tray with perforated parchment pape*r. Transfer the potato mixture to the air fryer and cook at 360°F for 9-10 minutes, flipping every 3 minutes with a fork. Cook until the potatoes are crisp and golden brown. Serve hot.
Notes
*To make perforated parchment paper at home, cut the parchment paper to the size of your air-fryer base and poke holes in it.