Preheat your oven to 350°F (175°C) and prepare a loaf pan with parchment paper or grease it.

In a large bowl, whisk the eggs until light and frothy, then add Greek yogurt and melted butter/coconut oil, mixing until smooth.

In another bowl, mix baking powder, salt, and xanthan gum, incorporating almond flour if using.

Gradually mix the dry ingredients into the wet ingredients until just combined, avoiding overmixing.

Transfer the batter into the prepared loaf pan, smoothing the top evenly.

Bake in the preheated oven for 35–45 minutes until golden brown and a toothpick comes out clean.

Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.