01 - Preheat oven to 375°F. Line a baking sheet with parchment paper and set aside.
02 - Combine cottage cheese and Greek yogurt in a large mixing bowl. Stir until mixture is completely smooth and homogeneous.
03 - Add whole wheat flour, whey protein powder, baking powder, and sea salt to the wet mixture. Stir until a shaggy, sticky dough forms.
04 - Lightly flour a clean work surface. Turn dough out and knead gently for 2 to 3 minutes until just combined. Avoid overworking the dough to prevent toughness.
05 - Divide dough into 4 equal portions. Roll each portion into a smooth ball. Press a finger through the center of each ball and gently stretch to form a 2-inch hole, creating classic bagel shape.
06 - Transfer bagels to the prepared baking sheet. Brush the tops generously with beaten egg to achieve a glossy, golden finish.
07 - Bake for 23 to 25 minutes until bagels are deeply golden brown and firm to the touch. Rotate the baking sheet halfway through for even browning.
08 - Let bagels cool for 5 minutes. Spread each bagel with cottage cheese topping. Garnish with fresh chives and black pepper. Serve warm or at room temperature.