Burger King proposes a sandwich even more epic than the McWhopper

The McWhopper saga has taken an unexpected and epic twist

Burger King announced via Facebook and Tumblr that it would like to collaborate with any and all takers on a one day only pop-up restaurant featuring "The Peace Day Burger."

See also: If the McWhopper isn't real, we demand these other fast food mashups

Image: Burger King

The letter says the proposition to McDonald's still stands. If McDonald's wants to join the party, the company is more than welcome, despite the CEO's sarcastic retort

Denny’s, Wayback Burgers, Krystal, and Giraffas, we’d like to build on your individual proposals to collaborate on Peace Day, September 21, 2015. Our idea would be that we all come together to create a burger that combines a key ingredient from each of our signature sandwiches. Read more...

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