In a separate large bowl, whisk together your almond flour, protein powder, half of your monk fruit mixture, and salt. Sift your flour mixture into another large bowl. Do this back and forth between the bowls 3 times.
Add your vanilla extract and continue to beat until the whites hold stiff peaks. In four separate times, gently fold the flour mixture into the egg whites until well combined (a silicone spatula works best for this). Be sure to scrape the bottom of the bowl.