Preheat oven to 375 degrees F.
Place parchment paper on a baking sheet and lightly coat with cooking spray.
In a large bowl, combine flour (and baking powder, if using) and yogurt until the mixture clumps to ball of dough.
Dump mixture onto a lightly floured work surface and knead the dough by hand until the dough is smooth and elastic (approx 5 min). Dust with add'l flour as needed if the dough is too sticky.
Divide the dough into 8 equal parts and shape each portion of the dough into a ball.
Use your thumbs to make a hole in the center of each ball. Gently pull and stretch until the dough is a uniform ring. Repeat with remaining dough balls. *Flour your hands as needed, if too sticky to handle.
Arrange the shaped bagels on the prepared baking sheet.
Mix together the egg wash by whisking the egg, salt, and water in a small bowl until smooth.
Brush the egg wash mixture over the bagels. Sprinkle desire toppings if desired (additional season, such as everything bagel, ranch, parm cheese, etc).
Bake for 20 to 22 minutes, rotating the baking sheet halfway through.
Remove from oven. Increase oven temp to 450 degrees F.
Return baking sheet to oven and bake for an additional 3 to 4 minutes until the tops of the bagels have browned.
Remove from oven and let cool.
ENJOY!