This Friday, September 18, is National Cheeseburger Day.

Steak ‘n Shake us offering all loyalty app members $2 off (or 50 percent off) the Double ‘n Cheese Steakburger from September 18 through September 24.

Limited to one per order, per visit. The offer will only be valid on orders placed through the app. With that said, now would be a great time to join the Steak ‘n Shake Rewards Club. Download the Rewards Club app and receive a free Specialty Milkshake with your first purchase as a club member.

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