Burger King’s Whoppers Cost 1 Cent If You Order Them At McDonald’s

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Burger King is closing out the year with a pretty savvy Whopper promotion, all while taking a quick shot at rival burger chain McDonald’s. Hey, all in good fun, right?

Fans of BK will now be able to purchase their iconic Whopper burger for a penny. Here’s the catch: you have to be inside a McDonald’s to do so.

According to the brand, users of the app will be able to unlock a 1-cent Whopper promotion if they are within 600 feet of a McDonald’s location. Once they order their burger, they can head to the nearest Burger King spot and pick it up …