Preheat oven to 325 degrees and prepare a large loaf pan by lining with parchement paper.
Add the water and egg white bread dry mix to the bowl of your stand mixer.
In a small bowl mix together the butter powder and the whole egg powder and set aside
Start the mixer with the whisk attachment on low speed. Gradually increase the speed until full. Mix on full speed for 5-10 minutes or until you get a texture similar to shaving cream.
Remove the loaf from the oven and allow to cool in the pan on a wire rack for about 10 minutes.
Find the recipe for the Egg White Bread Dry Mix here: http://indigonili.com/egg-white-bread-mix/
Substitution options:
Butter powder can be substituted with mct oil powder for a dairy-free version.