There's really no rhyme or reason for what kinds of foods people bring to potlucks. Today, potlucks are still a tool to gather and share food. What Do People Bring At Potlucks (And Why)? For American households, potlucks were a chance to share resources during a time of scarcity (as a result of the war) and spend quality time with loved ones without breaking the bank.
Families would prepare a casserole dish to bring to the potluck, preparing macaroni and cheese, soups, and chilis. Families began organizing their own potlucks to spend time with family and friends. In the 19th century, during the Great Depression, churches often organized potlucks to support the local communities in the US. Over time, potlucks became increasingly popular among rural and poorer communities.
