Recognition they need to go mainstream.

Burger king and silicon valley startup impossible foods announced the roll-out of the impossible whopper in 59 stores in and around st.

Louis, missouri.

To mark the launch on april fool's day, the burger giant released a hidden-camera- style promo video showing the serving of plant-based whoppers instead of meat to customers who marvel that they cannot tell the difference.

The impossible whopper comes at an extra cost - about a dollar more than the beef patty whopper.

Impossible foods chief executive pat brown, whose company tailored a fake meat patty specifically for the whopper, has confidence the vegetarian patty will be a hit: plant-based 'meat' has been gaining popularity as more attention is focused on the environmental hazards of now."

Vegetarian burgers may finally be getting the