found by chance some recipes with raw beaten egg whites, but... they involve booze. Maybe you could use juice/fresh fruit/home brewed mead/cider/kombucha/jun instead?... for instance: egg whites plus gin plus liqueur. Or: egg white plus whisky plus orange.
Or, non alcoholic cocktail: egg white, currants, pear, honey, ginger. Or: egg whites pineapple, apple juice, lemon.
Never tried any...but who knows, maybe some of this stuff is satisfying?