Prep your oven: Heat to 375°F (190°C).
Line a baking sheet with parchment and lightly spray it.
Mix the dough: In a bowl, combine self-rising flour and salt. Add the Greek yogurt and use a fork to mix until shaggy. Switch to your hands and gently bring it together.
Knead lightly: Turn the dough onto a floured surface.
Knead 8–10 times—just until smooth. Do not overwork or the bagels can turn tough.
Divide and shape: Cut into 4 equal pieces. Roll each into a log about 7–8 inches long. Connect the ends to form a ring and pinch to seal.
Alternatively, roll into a ball and poke a hole in the center, stretching gently.
Egg wash and toppings: Whisk the egg with water. Brush over each bagel. Sprinkle generously with your chosen toppings.
Bake: Place on the prepared sheet and bake for 20–24 minutes, until set and lightly golden.
For a deeper color, broil for 1–2 minutes at the end—watch closely.
Cool briefly: Let the bagels rest for 10 minutes before slicing. This helps the interior set and makes cleaner cuts.