Prep the air fryer: Preheat to 350°F (175°C) for 3–4 minutes.
Lightly grease the basket or line with parchment made for air fryers.
Mix dry ingredients: In a bowl, whisk self-rising flour and protein powder until evenly combined. If making your own self-rising flour, add baking powder and salt first, then whisk in the protein. Stir in optional garlic and onion powder.
Add the yogurt: Fold in the Greek yogurt with a spatula until a shaggy dough forms.
If it’s too dry or crumbly, add 1 tsp water at a time. If it’s sticky like paste, sprinkle in a little more flour.
Knead briefly: Lightly flour a surface and your hands. Gently knead the dough 30–45 seconds until smooth.
Avoid over-kneading; you want it soft and cohesive, not tough.
Divide and shape: Divide dough into 2 large pieces for jumbo bagels (about 25g protein each) or 3 smaller ones. Roll each piece into a rope 7–8 inches long. Join the ends and pinch well to seal, smoothing the seam.
Egg wash and toppings: Brush each bagel with beaten egg.
Sprinkle on everything seasoning, sesame, or your preferred topping. Press gently so it sticks.
Air fry: Place bagels in the basket with space between them. Air fry at 350°F (175°C) for 10–12 minutes, flipping at the 7-minute mark.
They’re done when golden brown and firm on the outside.
Rest and serve: Let them cool 5–10 minutes. This sets the crumb and improves chew. Slice and enjoy plain, or toast and top as you like.