A McDonald’s burger that’s popular in Canada has come to the US this week, but it’s only available in one location. The Ghost Pepper McChicken first launched on the Canadian menu in 2019 and is a firm favorite with spice lovers. Ghost Pepper McChicken launches in USIt takes the fast food chain’s classic McChicken, which consists of a juicy chicken patty, topped with shredded lettuce and creamy mayonnaise, all served on a perfectly toasted bun, and adds a super spicy twist. The burger is topped with a creamy sauce made with Ghost Pepper, the world’s hottest chili pepper which is 170 times hotte…