The cheeseburger is an American staple, so much so that there is a special holiday dedicated to it.

National Cheeseburger Day falls on September 18th and many fast food restaurants offer special deals for the occasion.

McDonald’s fans can get a double cheeseburger for just 50 cents on Wednesday if they order exclusively via the app.

Burger King gives members of its Royal Perks loyalty program a free cheeseburger with every purchase of one dollar or more.

Wendy’s, meanwhile, is upping the ante by offering a bacon cheeseburger for just 1 cent to customers who download the app and make any purchase from Wednesday through Sunday, September 22.

McDonald’s fans can get a double cheeseburger for just 50 cents on Wednesday if they order exclusively via the app

Other large fast food chains and burger restaurants also offer special promotions.

Members of the Blazin’ Rewards loyalty program at Buffalo Wild Wings can buy one burger and get one free on September 18th.

The offer is aimed at customers who eat in a restaurant, as well as for take-away and delivery.

Applebee’s is also getting in on the action, offering customers one of its three classic burgers with classic fries for $8.99.

Fast food fans can choose between the Classic Burger, the Classic Cheeseburger and the Classic Bacon Cheeseburger.

The offer at Dairy Queen, valid Wednesday through Sunday, is a free double original cheeseburger signature stackburger for anyone who spends over $1.

The burger consists of two beef patties, spicy American cheese, pickles, ketchup and mustard.

Sonic fans can get the quarter-pound double cheeseburger for $1.99 or a Sonic Smasher for $7.

The Sonic Smasher consists of two Angus beef patties topped with two slices of melted American cheese, Smasher sauce, curly pickles and diced onions.

But Sonic doesn’t need a special occasion to offer cheeseburger deals. The chain gives away half-price cheeseburgers every Tuesday after 5 p.m.

National Cheeseburger Day is on September 18th and many fast food restaurants offer special deals for the occasion.

Burger King is giving away a free cheeseburger with every purchase of $1 or more for members of its loyalty program Royal Perks

Members of the Blazin’ Rewards loyalty program at Buffalo Wild Wings can buy one burger and get another free on September 18

Smashburger is offering classic singles for $5 in-store, online or through the app on National Cheeseburger Day.

The chain is also giving away a coupon for 50% off any burger or sandwich with every purchase on Wednesday.

This applies to future visits from September 19th to October 17th.

Denny’s Rewards members also receive 20% off any burger on Wednesdays.