Made with just two main ingredients, egg whites and Parmigiano Reggiano, these little bites are crisp on the outside, tender on the inside, and bursting with nutty, cheesy flavor. Comment Recipe or visit uncomplicatedchef.com/polpette-di-parmigiano #PolpetteDiParmigiano #AppetizerIdeas #CheeseRecipes #CrispyAndGolden #holidayappetizers