Preheat the air fryer. Set to 350°F (175°C). If your air fryer runs hot, go with 340°F.
Lightly spray the basket or use a perforated liner so the bagels don’t stick.
Mix the dry base. In a medium bowl, add 1 cup self-rising flour. If using all-purpose, whisk in 1 1/2 teaspoons baking powder and 1/4 teaspoon kosher salt to make it self-rising.
Add the yogurt. Stir in 1 cup plain nonfat Greek yogurt. Use a sturdy spoon or spatula.
The dough will look shaggy at first—keep mixing until it comes together. If it’s too sticky, dust in 1–2 tablespoons flour. If it’s too dry, add 1–2 teaspoons yogurt.
Knead briefly. Lightly flour your hands and counter.
Turn the dough out and knead gently 20–30 seconds, just until smooth. Don’t overwork or the bagels can get tough.
Divide and shape. Split the dough into 3 large pieces for higher protein bagels (about 26g protein each) or 4 smaller ones. Roll each piece into a 6–7 inch rope, then connect the ends to form a ring. Pinch the seam well so it doesn’t open while cooking.
Egg wash and top. Brush each bagel with egg whites.
Sprinkle generously with everything bagel seasoning or your favorite topping. Press lightly so it sticks.
Air fry. Arrange bagels in a single layer with space between them. Air fry 10–13 minutes, flipping at 7 minutes if your air fryer browns unevenly.
They’re done when puffed, golden, and set in the center.
Cool briefly. Let them sit 5 minutes. This helps the crumb set and makes slicing easier.
Serve. Slice and toast if you like extra crunch, then add toppings: smoked salmon, eggs, turkey, avocado, or a smear of whipped cream cheese.