Shake Shack has opened at Mercato in Naples after months of anticipation.
Credit: Kendall Little / USA TODAY NETWORK via Imagn Images

Shake Shack is offering a buy-one-get-one-free deal on its Korean Style fast-food menu at participating locations through April 22, 2026.

The offer applies to qualifying orders of two K-Shack items, with the lower-priced item free. It sounds like a great deal, but be warned: there are a few caveats.

For example, Brand Eating reported that the promotion will not be available at airports, stadiums, arenas, travel plazas, and museums.

The lineup

Shake Shack Korean-Style Menu
Shake Shack Korean-Style Menu. Credit: Shake Shack

Shake Shack’s Korean-style lineup is built around the same six items fans have been seeing throughout the year.

Amazingly, this isn’t one of those thin promotions where you only have a couple of free items to pick from on a BOGO menu. It’s pretty loaded, and the options are listed below:

  • K-Shack BBQ Burger
  • K-Shack Fried Chicken Sandwich
  • K-Shack Fried Chicken Bites
  • K-Shack Spicy BBQ Fries
  • K-Shack Spicy BBQ Cheese Fries
  • K-Shack Spicy Caramel Shake. 
Guests place their orders at the kiosks on opening day of Shake Shack in Athens, Ga. on Wednesday, March 4, 2026.
Guests place their orders at the kiosks on opening day of Shake Shack in Athens, Ga. on Wednesday, March 4, 2026. Credit: Andrew Shearer/Athens Banner-Herald / USA TODAY NETWORK via Imagn Images

How to order and get the deal

Information from Shake Shack shows the BOGO can be redeemed when you order at an in-Shack kiosk, through the Shake Shack app, or on the company website.

You need to add two qualifying K-Shack items to your order and use the code SPICYSWEET at checkout, in all caps.

Two more exemptions to consider with this offer are:

  • The code does not work for drive-thru orders
  • The code does not work via third-party delivery apps

Regardless of the constraints on where and how you order, a BOGO deal is still worth checking out.