Preheat the air fryer: Set it to 375°F (190°C) for 3–5 minutes. A hot basket helps sear the patties and keeps them juicy.
Form the patties: Divide 1 pound of ground beef into 3–4 equal portions.
Gently shape into patties about 1/2 inch thick and slightly wider than the buns. Press a shallow dimple in the center of each patty to prevent puffing.
Season generously: Sprinkle both sides with salt and pepper. Add garlic and onion powder if you like.
Don’t overwork the meat.
Prep the basket: Lightly spray the basket with oil. Avoid heavy coatings that can smoke.
Cook the first side: Place patties in a single layer, not touching. Air fry for 6–7 minutes.
Flip and finish: Flip the patties and cook 3–5 more minutes, depending on thickness and preferred doneness.
For food safety, aim for 160°F (71°C) internal temperature.
Add cheese: Place a slice on each patty and cook 30–60 seconds more to melt. If your air fryer blows cheese around, tent loosely with foil for that last minute.
Toast the buns: Spread butter or mayo on the cut sides. Air fry cut-side up for 1–2 minutes until golden.
Rest the patties: Let them sit for 2–3 minutes to keep the juices inside.
Assemble: Stack patties on buns with your favorite toppings and sauces.
Serve hot.