01 - Preheat oven to 350°F. Line an 8x4 inch loaf pan with parchment paper, ensuring edges overhang for easy removal.
02 - In a medium mixing bowl, whisk Greek yogurt and eggs until fully incorporated and slightly frothy, about 30-45 seconds.
03 - In a separate small bowl, sift together coconut flour, baking powder, and salt to eliminate lumps and ensure even distribution.
04 - Add dry ingredients to wet mixture. Stir thoroughly until completely smooth and no dry pockets remain. Allow batter to rest for 2-3 minutes so coconut flour can fully absorb moisture.
05 - If using apple cider vinegar for extra fluffiness, fold it gently into the rested batter until just combined.
06 - Pour batter into prepared loaf pan. Use a spatula to smooth the top surface evenly. Sprinkle with sesame or poppy seeds if desired.
07 - Bake for 30-35 minutes until golden brown on top and a toothpick inserted into the center comes out clean. The top should spring back when lightly touched.
08 - Allow bread to cool completely in the pan before removing. Once cooled, slice into 8 even portions. Serve immediately or store in refrigerator for up to 5 days.