Happy Anniversary, Smashburger! The popular fast-casual better burger chain is celebrating its 15th anniversary this year.

Join the celebration with a Cheesy Caramelized Onion Smash, an LTO (limited time offer) burger available through August 30, 2022 (photo #1).

We love a good cheeseburger, and this one is made with two kinds of cheese, Cheddar and Swiss. The Certified Angus Beef patty is also topped with caramelized onions, tomatoes, lettuce, and mayo, on a toasted onion bun.

Instead of a beef burger, you can substitute Smashburger’s grilled chicken, crispy chicken, turkey burger patty, or black bean patty.
 
 
WHAT IS A “SMASH” BURGER?

Smashburger was founded in 2007 by two restaurant industry veterans who focused on “smashed” burgers” that use a specialized process of cooking.

The burger patties are pressed down (“smashed”) on a flattop* grill at high heat. The method sears the burger for flavor.

The technique originated in the Great Lakes region at pressed-chuck burger restaurants, and has been a staple there for decades [source].

Check out the video to see Smashburger co-founder Tom Ryan shows the “smashing” technique.

The company customizes its burgers to local preferences. For example:

 
Rolls vary, too: telera rolls† are used in California restaurants, pretzel rolls are served in Chicago restaurants, onion rolls in Minnesota, and brioche rolls in New York (the difference between rolls and buns).

> Find a Smashburger near you.

> Discover more at Smashburger.com.
 
 
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[1] The limited-time Cheesy Caramelized Onion Smash (all photos © Smashburger).

[2] Add some tots or fries.

[3] How about sweet potato fries?

†Telera rolls are staples for Mexican sandwiches. They’re a smaller version of French bread, with a crispy crust on the outside, and a softer texture inside.