Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper.
In a large mixing bowl, combine the self-rising flour and Greek yogurt. Stir until a dough begins to form.
Transfer the dough to a lightly floured surface and knead for 2–3 minutes until smooth. If the dough is too sticky, add a little extra flour.
Divide the dough into 4 equal pieces. Roll each piece into a rope and connect the ends to form a bagel shape.
Place the bagels on the prepared baking sheet. Brush lightly with milk and sprinkle with your preferred toppings.
Bake for 22–25 minutes, or until the bagels are golden brown and cooked through.
Allow the bagels to cool for 5–10 minutes before slicing and serving.