Upper Crust refers to a social class or group that is considered to be at the top of the social hierarchy, often characterized by wealth, privilege, and influence. This term is commonly used to describe individuals or families who have significant economic resources and access to exclusive social circles. In culinary terms, Upper Crust can also refer to a type of pastry or baked good, typically featuring a flaky, golden-brown outer layer. This pastry is often used in dishes like pies and tarts, where it serves as a delicious and visually appealing outer shell for various fillings.