- olive oil cooking spray
 - 2/3 cup almond flour
 - 1/3 cup coconut flour
 - 2 teaspoons baking powder
 - 1/2 teaspoon xanthan gum
 - 1/2 teaspoon salt
 - 4 eggs
 - 4 egg whites
 - 1/4 cup butter, melted
 - 1/4 cup coconut oil, melted
 - 3 tablespoons grapeseed oil
 
- Preheat oven to 350 degrees F (175 degrees C). Grease an 8×4-inch loaf pan with cooking spray.
 - Mix almond flour, coconut flour, baking powder, xanthan gum, and salt together in a large bowl.
 - Combine eggs and egg whites in a food processor; pulse until well beaten. Add almond flour mixture, butter, coconut oil, and grapeseed oil. Pulse until a smooth batter forms.
 - Spread batter in the prepared loaf pan.
 - Bake in the preheated oven until top is browned, about 40 minutes. Cool in the pan, about 15 minutes. Invert onto a cooling rack to finish cooling.