Today I would like to point out this recipe for a reduced carbohydrate content bread (2.4 grams of net carbohydrates per slice), useful for those who are following a low-carb regime or must in any case contain carbohydrates for a certain period while not on a diet. strictly ketogenic. This sandwich bread is perfect in the morning for breakfast, for sandwiches, and so on, and unlike other types of carbohydrate-free bread it has the advantage of being also low in calories and not disproportionate.
Here is the recipe, which I got here. 

CARBOHYDRATE AND GLUTEN FREE BREAD
A teaspoon of baking powder
Half a cup of coconut flour (means flour, not grated coconut)
Half a cup of almond flour: 230 gr
Two large egg yolks or 5 teaspoons of powdered psyllium
360 gr of egg whites or 8 egg whites from large eggs
Dehydrated onion half a teaspoon + aromatic herbs (avoid them if you want bread that is also suitable for breakfast)
A pinch of salt 3 tablespoons of oil or 30 grams of
melted butter
2 tablespoons of apple cider vinegar
one third to about half a cup of hot water 

In a bowl, mix all the dry elements. In another, put the egg whites, egg yolks if you are not using psyllium, oil, vinegar and a third of a cup of hot water and whisk everything for 6 or 7 minutes. Gradually combine the dry elements by spoonfuls. If the dough is hard, add the rest of the water. Pour it into a rectangular mold and bake at 170 °, maximum 180 °.
Keep in the oven for about an hour, until the bread has a nice golden crust.