Preheat the Oven: Preheat your oven to 350°F (175°C) and line or grease a loaf pan.
Mix the Wet Ingredients: In a large bowl, stir together the pumpkin puree, eggs, melted butter, vanilla, and sweetener until smooth.
Combine the Dry Ingredients: In a separate large bowl, combine almond flour, coconut flour, baking powder, pumpkin pie spice, cinnamon and salt.
Combine Wet and Dry: Slowly add the dry ingredients to the wet mixture, until fully combined and a thick batter is formed.
Pour into Pan: Transfer the batter to the prepared loaf pan and use a spatula to spread the top.
Bake: Place in the oven and bake for 40-45 minutes or until a toothpick stuck in the centre comes out clean.
Cool: Allow the bread to cool in the pan for 10–15 minutes, then remove it to a wire rack to cool completely before slicing.