Preheat the waffle maker: Turn on your waffle maker to medium heat, brushing it lightly with butter or coconut oil.
Mix the dry ingredients: In a mixing bowl, combine the almond flour, coconut flour, baking powder sweetener and salt.
Combine the wet ingredients: Mix the beaten eggs with peanut butter, melted butter, unsweetened almond milk and vanilla extract until combined in another bowl.
Make the batter: Add the wet mixture to the dry and stir until combined Batter should be thick but pourable.
Cook the waffles: It is also time to cook the waffles: pour some batter in a preheated waffle maker, close it and cook for about 3-4 minutes until golden brown.
Serve: Allow the waffles to rest for 1-2 minutes before serving. Cool for 1 minute and serve with sugar-free syrup or a little whipped cream, or fresh strawberries.