Beat the eggs with melted butter, Ceylon cinnamon, sweetener and salt. Add ground walnuts, flaxseed meal and keep mixing.
At this point, add psyllium powder and whisk energetically. As the batter gets thicker due to the psyllium absorption, add sparkling mineral water and mix well.
Grease the waffle iron with some coconut oil and pour the mixture. Cook the waffles on medium temperature for 3 minutes.
Top with Keto honey substitute while the waffles are still hot. Decorate with walnut halves. Alternatively, you can top the waffles with our Karidopita icing by following this recipe.