Strawberry-flavoured sandwich cookies shaped as funny faces. They're something children love, but apparently Millennials like me never stopped being children, so...
I used to buy them but I'm avoiding the associated brand, so nowadays I make them at home. (With artisanal funny faces! Okay they look ugly but the cookies are IMO even better than store-bought.)
Relevant noting sodium glutamate is naturally present in a lot of things: hard cheeses, tomatoes, soy sauce, mushrooms etc.