Preheat your oven to 350°F (175°C) and prepare a loaf pan.

In a mixing bowl, combine the eggs, Greek yogurt, and melted butter or coconut oil until smooth.

In a separate bowl, whisk together baking powder, salt, and xanthan gum or psyllium husk powder. Fold into wet ingredients until combined.

Pour batter into prepared loaf pan and smooth the top.

Bake for 35 to 45 minutes until golden brown and a toothpick comes out clean.

Let cool in the pan for 10 minutes, then remove and cool completely before slicing.