Which fast-food chain introduced the plant-based Impossible Whopper in 2019?

Burger King introduced the plant-based Impossible Whopper in 2019.

The Impossible Whopper was made with an Impossible Foods plant-based patty designed to resemble the taste and texture of beef. Burger King first tested the sandwich in the St. Louis area before expanding it across the United States later in 2019.

The sandwich used the familiar Whopper format, including a sesame-seed bun, lettuce, tomato, pickles, onions, ketchup, and mayonnaise. Because the standard preparation included mayonnaise, it was not automatically vegan.

The launch was notable because it brought a prominently marketed plant-based burger to one of the largest global fast-food chains. It also helped make “plant-based” menu terminology more familiar to mainstream diners.