How Authentically Jewish Is My Chicken Soup?

What does it mean for a recipe to be authentically Jewish? Here at MJL we try to bring you great Jewish recipes, but that means we spend a lot of time thinking about what it means for a recipe to be Jewish. Must it have been made by Jews and that’s it? Must it be something old-world-y, like brisket, or do my recipes for seudah shlishit also count?