In a medium bowl, combine 1 cup of all-purpose flour, 1 teaspoon of baking powder, and ½ teaspoon of kosher salt. Stir these dry ingredients until well mixed, and then add ¾ cup of plain Greek yogurt. Use a spatula to blend until a crumbly dough forms, ensuring all the flour is incorporated.

Transfer the dough onto a floured surface and gently knead it for about 2-3 minutes until it's smooth and slightly elastic.

Divide the kneaded dough into four equal pieces. Take each piece and roll it into a log approximately 5-6 inches long. Pinch the ends together to form a bagel shape.

In a small bowl, whisk together one egg yolk and a splash of water to create an egg wash. Lightly brush this mixture over the bagels.

Preheat your air fryer to 350°F for about 3-5 minutes. Place the bagels in the air fryer basket and cook them for 8-10 minutes, or until they are golden brown.

After cooking, remove the Air Fryer Bagels from the basket and let them cool on a wire rack for 5-10 minutes.