Recipe
Beat the egg whites and sugar in a large mixing bowl placed over a bain marie until your mixture thickens at 55-60°C (130-140°F).
Take the mixture off the heat, then whip it up using the whisk attachment of a stand mixer.
Pipe the mixture.
BAKING: Bake at 85-90°C (185-195°F) for approx. 2 hours.