National Queso Day is observed worldwide every September 20, celebrating the beloved Tex-Mex dish known as queso, which consists of melted cheese and chili peppers. This unofficial food day honors chile con queso, a creamy dip that originated in the Mexican state of Chihuahua and became a staple in Tex-Mex cuisine. Chile con queso is typically made from melted cheese, cream, and jalapeño peppers, and is served warm with tortilla chips, pita chips, or tortillas. It can also be enjoyed as a condiment with various Tex-Mex dishes such as enchiladas and tacos. To celebrate, people often visit Tex-Mex restaurants to share a bowl of queso with friends or make their own at home. Engaging in activities like ranking different queso offerings from local restaurants or hosting a chips and dip party is also common.