Prepare the Base: In a medium mixing bowl or the bowl of a stand mixer, combine the flour, baking powder, and salt. Whisk these dry ingredients together to ensure the leavening agent is evenly distributed.

Form the Dough: Make a well in the center of the dry ingredients and add the cottage cheese. Use a rubber spatula or a fork to mix until a crumbly dough forms. Continue mixing until the dough begins to come together into a ball.

Knead the Dough: Transfer the dough onto a well-floured surface. With floured hands, knead the dough for about 2 minutes until it becomes semi-smooth. If the dough is too sticky, add a light sprinkle of flour as you go.

Shape the Bagels: Divide the dough into 4 equal sections. Roll each section into a log approximately 6 to 7 inches long and 3/4 inches thick. Bring the ends together and pinch them firmly to seal, forming a bagel shape.

Add Toppings: Whisk the egg with a splash of water to create an egg wash. Brush the tops and sides of each bagel with the egg wash, then sprinkle your desired toppings over the surface.

Cook the Bagels: To air fry, preheat your air fryer to 300°F. Line the basket with parchment paper or spray with cooking oil. Place the bagels in an even layer and cook for 15 to 17 minutes until golden brown. To bake in the oven, preheat to 375°F and bake on a parchment-lined sheet for 20 to 25 minutes.

Cool and Serve: Remove the bagels from the heat and let them cool for at least 15 minutes. This step is essential as the bagels continue to set while cooling. Slice, toast, and enjoy!