Burger King wants you to design the next Whopper.

The chain recently kicked off its Million-Dollar Whopper Contest, allowing participants to create their dream Whopper for a chance to win a $1 million prize and have their creation sold at restaurants nationwide for a limited time.

To enter, participants would have to submit their Whopper creation through the Burger King app by March 17.

Later this year, contest judges will select three finalists who will go to the company’s headquarters in Miami to refine their concepts before they appear on menus nationwide for a limited time, a news release said.

Customers can then try the three sandwiches and vote for their favorite. The finalist with the most votes will take home the prize.

“Burger King is all about Having It Your Way, and this contest is a true embodiment of that. More than 50% of Guests customize their Whopper sandwich, and now, the possibilities of what those customizations include are endless,” Pat O’Toole, chief marketing officer at Burger King, said in a statement.

Currently, there are over 200,000 possible customized combinations for the Whopper.

Burger King fans in Los Angeles can also visit the “Million Dollar Whopper World” pop-up at the Santa Monica Pier to sample a California-inspired Whopper sandwich or create their own Million Dollar Whopper Contest-inspired sandwich with ingredients that can’t be found in the restaurant.

Exclusive merch and more will also be available.

More information about the contest can be found here.