Preheat oven to 375 degrees F and line large baking sheet with parchment paper. In a large bowl, add almond flour, baking powder and salt; whisk well to combine.

Add Greek yogurt and stir with spatula to combine until a ball of dough forms. Knead it with a spatula about 20 times. Dough will be a bit sticky.

Transfer dough on a counter sprinkled with almond flour, form a log and cut into 6 even pieces. Roll each piece into a short rope and then form a bagel shape, pinching the ends together. Place on a baking sheet and repeat with remaining dough.

In a small bowl, whisk the egg. Brush bagels with an egg wash and sprinkle with everything bagel seasoning, sesame seeds, poppy seeds or onion flakes.

Bake for 23-25 minutes or until golden brown and puffy. Remove from the oven and let rest for 25 minutes (do not skip!). Slice, spread and enjoy with your favorite toppings.