Peel and grate potatoes using a box grater
Place grated potatoes in a clean kitchen towel
Squeeze out as much moisture as possible
Transfer to a bowl and repeat squeezing with fresh towel
Toss with olive oil garlic powder onion powder salt and pepper
Preheat air fryer to 400°F (200°C) for 3 minutes
Form potato mixture into flat patties
Spray air fryer basket generously with cooking spray
Place patties in single layer in basket
Spray tops generously with cooking spray
Cook for 8 minutes then flip carefully
Spray again with cooking spray
Cook another 7 minutes until golden and crispy
Sprinkle with sea salt immediately after cooking
Serve with sour cream and fresh chives