Burger King is officially testing a box of mini burgers

Three bold flavors headline Burger King’s new mini burger lineup

Flame-grilled flavor, just smaller. Meet the new King-Sized Sliders Box — perfect for sharing or snacking on the go! | ©Image Credit: Burger King
Flame-grilled flavor, just smaller. Meet the new King-Sized Sliders Box — perfect for sharing or snacking on the go! | ©Image Credit: Burger King

Craving something small but packed with big flavor? Burger King might have just the answer—but only if you’re in the right place at the right time. The fast-food giant is quietly testing a new box of mini burgers designed for mixing, matching, and sharing. With three bold new recipes leading the charge, the chain is betting big that good things really do come in small packages.

Burger King’s new sliders box lets you build the ultimate mini burger combo

The “Home of the Whopper” is officially shrinking its signature flavor down to size. Starting later this month, Burger King is rolling out a limited-time trial of its new King-Sized Sliders Box in two select U.S. markets. Designed for those who want the classic flame-grilled taste without committing to a full-sized meal, these snackable minis are all about variety, portability, and shareability.

Whether you need a light bite or a full-on feast, the King-Sized Sliders Box puts you in the driver’s seat. Its customizable format lets you build a personalized box of either two or six sliders, giving you the freedom to mix and match between three bold flavors in a single order — no tough choices required.

Here is the three-flavor lineup hitting the test grill:

  • Deluxe Slider: A fresh take on the classics, featuring a flame-grilled beef patty layered with crisp lettuce, sliced tomato, pickles, and a signature tangy burger aioli on a toasted, buttery bun.
  • Steakhouse Bacon Slider: For those craving something more robust, this version packs Swiss cheese, crunchy bacon, crispy fried onions, and a bold peppercorn sauce into every bite.
  • Bacon & Cheese Slider: A crowd-pleasing staple that pairs a flame-grilled patty with melted American cheese, savory bacon, and a dollop of tangy aioli.

Where is Burger King testing the new sliders box?

Burger King is currently rolling out its new slider concept in two select regions to gauge fan reaction. A company spokesperson confirmed to Parade that participating restaurants in Columbus, Ohio, and Portland, Oregon, will serve as the exclusive testing grounds for this pilot program.

While this limited-time trial is currently confined to these two markets, these mini-Kings are already generating significant heat. If the trial proves successful this spring, these bite-sized favorites could soon make their way to menu boards across the country. Keep in mind that pricing and participation may vary by location as the fast food chain monitors local feedback.

The countdown is on: How long will the test last?

If you’re lucky enough to be in one of the test markets, you’ll need to act fast to get your hands on a box. The limited-time trial officially kicks off on Wednesday, April 14, and is scheduled to run through Monday, May 18.

However, as with most high-profile fast-food experiments, these mini-Kings are subject to availability. Given the early hype surrounding the triple-flavor lineup, there is a strong possibility they could sell out before the mid-May deadline. If you want to sample the Deluxe, Steakhouse Bacon, or Bacon & Cheese sliders, it’s best to head to a participating Columbus or Portland location sooner rather than later.

Sources: Parade, QSR