Burger King wants McDonald’s help to make the ‘McWhopper’

Aug 26, 2015

Burger King has offered McDonald's a golden opportunity to come together and make one burger to rule them all — in the name of world peace, of course.

In full-page ads running Wednesday in The New York Times and the Chicago Tribune - the hometown paper of the Illinois-based McDonald's - the fast-food chain is proposing the "McWhopper," a hybrid of each company's signature Big Mac and Whopper burgers that will be sold for one day in one pop-up store in one city.

That city, Burger King is proposing, would be Atlanta, a meeting point between both company's headquarters. The marketing stunt would be held on Sept. 21, with proceeds benefiting the anti-conflict nonprofit Peace One Day.

Burger King has also set up a website listing out its proposal, even suggesting a recipe for the new hybrid burger: it will contain six ingredients from the Big Mac (like cheese and special sauce) and six from the Whopper (like the flame-grilled patty and onions).

McDonald's responded on Facebook Wednesday morning:

Dear Burger King,

Inspiration for a good cause... great idea.

We love the intention but think our two brands could do something bigger to make a difference.

We commit to raise awareness worldwide, perhaps you’ll join us in a meaningful global effort?

And every day, let's acknowledge that between us there is simply a friendly business competition and certainly not the unequaled circumstances of the real pain and suffering of war.

We’ll be in touch.

-Steve, McDonald’s CEO

P.S. A simple phone call will do next time.

Such publicity could help provide needed positive news for both companies, each struggling to improve revenues in a new health-conscious, "fast-casual" dining environment. Burger King, owned by private equity group 3G Capital, temporarily lost its ranking as the world’s No. 2 burger chain to Wendy’s last year. Meanwhile, McDonald's recently reported a 10% drop in quarterly sales, with new CEO Steve Easterbrook calling the results "disappointing".

All products and services featured are based solely on editorial selection. FORTUNE may receive compensation for some links to products and services on this website.

Quotes delayed at least 15 minutes. Market data provided by Interactive Data. ETF and Mutual Fund data provided by Morningstar, Inc. Dow Jones Terms & Conditions: http://www.djindexes.com/mdsidx/html/tandc/indexestandcs.html. S&P Index data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Terms & Conditions. Powered and implemented by Interactive Data Managed Solutions