Be sure to use a high power blender - this must be completely smooth. Feel free to add other extracts or even spices to vary the flavor profile. A few drops of orange oil makes a nice variation. Adapted from Maria Emmerich’s Chocolate Protein Pudding.
Lightly scramble the egg whites in a large nonstick pan over medium heat until just set. Set aside to cool for a few minutes.
Break up the egg whites and transfer them to a blender. Add remaining pudding ingredients and blend until completely smooth, adjusting salt, vanilla, and sweetener, as desired. Add more cashew milk, if desired but the pudding will thicken a bit as it sits. Divide between 2 serving dishes and refrigerate overnight.