Preheat your oven to 350°F (175°C) and prepare a loaf pan by lining it with parchment paper or greasing it with butter or oil.

In a large mixing bowl, whisk together the eggs, Greek yogurt, and melted butter or coconut oil until the mixture is smooth and creamy.

Add baking powder, salt, xanthan gum or psyllium husk powder, and almond flour (if using) to the wet mixture and stir until well-combined.

Pour the batter into the prepared loaf pan and smooth the top with a spatula.

Bake for 35-45 minutes until the crust is golden brown and a toothpick inserted in the center comes out clean.

Remove the loaf from the oven and let it cool in the pan for 10 minutes before transferring to a wire rack to cool completely.