Place egg whites into a mixing bowl, and beat with an electric mixer for 2 mins until white peaks form.
Slowly mix in the vinegar and beat again for 1 min.
In a separate bowl, mix together the Almond Flour, Psyllium husk powder, baking powder, and salt.
Fold the dry ingredients into the egg white mixture.
Pour in the boiling water and mix until it turns very thick like dough.
Separate into 6 Rolls and bake at 180 C (355F) for 40 mins (These bread rolls will rise high so make sure there is enough room on the tray).
In a frying pan, cook the bacon until it just turns brown. Wait until the bread rolls have reached 40 mins, and place the bacon and cheese on top of the bread rolls.
Cook for another 10 mins at the same temperature. Serve and enjoy!