Step 1: In a medium mixing bowl, combine the all-purpose flour, baking powder, and optional pinch of salt. Mix well.
Step 2: Add the cottage cheese to the dry ingredients. Mix with a spatula or spoon until a shaggy dough forms.
Step 3: Turn the dough out onto a lightly floured surface. Knead gently for 2-3 minutes until the dough is mostly smooth and comes together.
Step 4: Divide the dough into 4 equal portions. Roll each portion into a rope, then connect the ends to form a bagel shape, pinching firmly to seal. Alternatively, form each portion into a ball and poke a hole in the center with your finger, widening it to your desired bagel size.
Step 5: If using, whisk the egg in a small bowl. Brush the tops of the formed bagels with the egg wash. Sprinkle generously with your chosen toppings (everything seasoning, poppy seeds, or sesame seeds).
Step 6: Preheat your air fryer to 350°F (175°C) for 2-3 minutes. Carefully place the bagels in the air fryer basket in a single layer, ensuring they are not overcrowded. You may need to cook them in two batches.
Step 7: Air fry for 12-15 minutes, flipping them halfway through, until they are golden brown and cooked through. Cooking times can vary based on your air fryer model.
Step 8: Transfer the cooked bagels to a wire rack to cool slightly before slicing and serving. Enjoy warm!