Preheat oven to 375 degrees F. As it heats, grab a medium-sized bowl and combine the flour, baking powder and salt. Add yogurt, stirring until a craggy dough forms.
Lightly flour a clean countertop or work surface. Add the dough, kneading it about a dozen times, just to form a somewhat sticky ball. Divide it into six balls. Use your fingers to form a half dollar-sized hole in the center of each one.
In a small bowl, crack egg and add water. Beat together until combined. Brush the egg wash on one side of each bagel.
In a shallow plate or bowl, add everything bagel seasoning. Dip each bagel egg wash-side down into the seasoning. Flip, brush the other side with egg wash, and dip that side too, so the whole thing is covered.
Place bagels on a parchment-lined baking sheet about 2 inches apart. Bake for 20 to 25 minutes, or until the bagels are lightly golden and no longer gooey or jiggly. Cool before slicing and schmearing.