In a large mixing bowl, combine 1 cup of all-purpose flour, 1 cup of whole wheat flour (or additional all-purpose flour), 1 teaspoon of baking powder, and ½ teaspoon of kosher salt. Mix well to ensure even distribution of the dry ingredients.
Add 1 cup of plain Greek yogurt to the dry mixture. Using a spatula or your hands, mix until a shaggy dough forms. If the dough is too sticky, you can add a bit more flour, but be careful not to overdo it.
Turn the dough out onto a lightly floured surface. Knead it gently for about 2-3 minutes until it becomes smooth and elastic. Be sure not to over-knead; you want it to remain soft.
Divide the dough into 6 equal portions. Roll each portion into a ball, then use your thumb to create a hole in the center, shaping it into a bagel. Make sure the hole is large enough, as it will shrink during cooking.
Line your air fryer basket with a piece of baking parchment paper. This will help prevent sticking and make cleanup easier. Place the bagels in the basket, leaving enough space around each one for air circulation.
In a small bowl, beat 1 egg with 1 tablespoon of water to create an egg wash. Using a pastry brush, apply the egg wash generously over the tops of the bagels. This will give them a beautiful golden color as they cook.
Sprinkle your choice of toppings over the egg-washed bagels. You can opt for everything bagel seasoning, cinnamon sugar for a sweet touch, or a mix of rosemary and Parmesan for a savory twist. Shredded cheese is also an excellent addition for extra flavor.
Preheat your air fryer to 350°F (175°C). Once preheated, cook the bagels for 10-12 minutes, flipping them halfway through to ensure even cooking. They should be golden brown and puffed up when done.
Once cooked, carefully remove the bagels from the air fryer and let them cool on a wire rack for a few minutes. Serve warm, and enjoy with your favorite spreads or toppings.
