FREE Sin Burger (w/ Double Burger Purchase) | SmashBurger (TOMORROW)

smashburger sin city burger close up
On September 12th only, Smashburger is offering a FREE Sin City Burger ($6.59 value) with the purchase of a Double Burger! 
Note that add-on’s will be an additional charge and there is a limit of one free burger per person.
The Sin City Burger is made with 100% certified Angus Beef, topped with fried egg, thick applewood smoked bacon, American cheese, grilled onions, haystack onions, & Smash sauce on a Classic bun.