National Cheeseburger Day is observed every year on September 18 in the United States. This unofficial national holiday pays tribute to one of America’s favorite comfort foods. On National Cheeseburger Day, Burger King, Dairy Queen, Buffalo Wild Wings, and Sonic will provide complimentary cheeseburgers with any purchase made. Additionally, White Castle will offer customers a free slider when they utilize a promotional code either in-store or through the app.
- 2027: Saturday, September 18
- 2026: Friday, September 18
- 2025: Thursday, September 18
History of National Cheeseburger Day
The exact origin of the cheeseburger remains a topic of debate, with several claims regarding its creation.
National Cheeseburger Day in 2026 will be observed on Friday, September 18, 2026. This yearly food celebration is recognized throughout the United States, with prominent fast-food chains and local eateries providing significant discounts, BOGO (Buy-One-Get-One) offers, and complimentary items. Although specific promotions for September 18, 2026, will be revealed as the date approaches, major chains typically utilize loyalty applications and digital ordering systems to share these deals.
- 1924: Lionel Sternberger, a 16-year-old employed at his father’s sandwich shop in Pasadena, California, is frequently recognized as the inventor of the cheeseburger. He placed a slice of American cheese on a hamburger, and this creation was later incorporated into the menu.
- 1934: Kaelin’s Restaurant in Louisville, Kentucky, also asserts that it was the first to create the “cheeseburger”.
- 1935: The Humpty Dumpty Drive-in in Denver, Colorado, received a trademark for the term “cheeseburger”.
How National Cheeseburger Day is celebrated
- National Cheeseburger Day is observed by enjoying the iconic dish, often accompanied by special promotions from restaurants.
- Restaurant promotions: Numerous national and local fast-food establishments provide discounts, complimentary items, or buy-one-get-one-free offers on cheeseburgers for this occasion.
- Home cooking: Individuals frequently organize backyard barbecues or cheeseburger bars to commemorate the day with friends and family.
- Creative recipes: Food enthusiasts explore innovative cheeseburger variations, ranging from gourmet toppings to the use of unconventional ingredients.
- Social media: Participants share images of their cheeseburgers and promotions using the hashtag #NationalCheeseburgerDay.
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