Preheat the oven to 400°F (200°C) and prepare a baking sheet with parchment paper.

In a large bowl, whisk together the all-purpose flour, baking powder, and salt until well mixed.

Slowly stir in the Greek yogurt until a dough forms, then knead gently on a floured surface for 1-2 minutes.

Divide the dough into four pieces, shape each into a ball, then flatten and create a hole in the center.

Beat the egg and brush it over the tops of each bagel, then add any desired toppings.

Place the bagels on the baking sheet and bake for 22-25 minutes until golden brown.

Allow the bagels to cool on a wire rack for 5-10 minutes before slicing and serving.