Preheat oven to 375 °F. Place parchment paper on a baking sheet. In a medium bowl combine the flour, baking powder and salt and whisk well. Add the yogurt and mix with a spatula until well combined, it will look like small crumbles. Lightly dust flour on a work surface and remove dough from the bowl, knead the dough a few times until dough is tacky, but not sticky, about 15 turns (it should not leave dough on your hand when you pull away). Divide into 4 equal balls. Roll each ball into 3/4-inch thick ropes and join the ends to form bagels. Top with egg wash and sprinkle both sides with seasoning of your choice. Bake on the top rack of the oven for 25 minutes. Let cool at least 15 minutes before cutting.