Heat the oven to 375°F (190°C). Line a baking sheet with parchment paper and lightly spray it.
Mix the dough: In a bowl, combine self-rising flour and Greek yogurt.
Stir with a spoon until shaggy, then switch to your hands. If adding honey or salt, mix it in now. The dough should be soft and slightly tacky, not sticky.
Knead lightly: On a floured surface, knead 30–60 seconds until smooth.
Avoid overworking, which can make the bagels tough.
Divide and shape: Split into 4 equal pieces. Roll each into a 6–7 inch rope and connect the ends to form a ring, pinching to seal. Or poke a hole in a ball and stretch gently.
Egg wash and toppings: Whisk the egg with 1 tablespoon water.
Brush each bagel and sprinkle with seasoning.
Bake: Place on the prepared sheet and bake 20–25 minutes, until puffed and golden. For extra color, broil 1–2 minutes at the end, watching closely.
Cool slightly: Let rest 10 minutes before slicing. This helps them set and keeps the crumb tender.