Air-Fried Potato Pancakes

Ingredients

• 4 (7 oz or 200 g) potatoes, cleaned and peeled
• 1 medium (3.5 oz or 100 g) onion, chopped
• 1 (2 oz or 60 g) whole egg, beaten
• 1/4 cup (2 fl oz or 60 ml) milk
• 2 tablespoons (1 oz or 30 g) unsalted butter
• 1/2 teaspoon (1 g) garlic powder
• 1/4 teaspoon (1.5 g) Kosher salt
• 3 tablespoons (0.7 oz or 20 g) all-purpose flour
• ground black pepper, to taste