Preheat the oven to 375?. Place parchment paper on a baking sheet and lightly coat with cooking spray.

In a large bowl, combine the self-rising flour and 1 cup of yogurt until clumping to a shaggy dough. Add more yogurt as needed for a non-sticky consistency.

Dump mixture onto a lightly floured work surface and knead by hand for about 5 minutes until smooth and elastic. Adjust flour and yogurt as necessary.

Divide dough into 8 equal parts and shape each portion into a ball. Use thumbs to form a hole in the center of each ball to create a ring.

Arrange bagels on the prepared baking sheet. In a small bowl, whisk together the egg, salt, and water for an egg wash. Brush over bagels and sprinkle with desired toppings.

Bake for 20 to 22 minutes, rotating halfway through. Increase oven temperature to 450? and bake for another 3 to 4 minutes until browned.