Greg and Christine Try Hot Dr. Pepper

Hot Dr. Pepper is trending online. Fans claim it's a great holiday drink.

Hot Dr. Pepper is trending online. Fans claim it’s a great holiday drink.

Heat up a two-liter of it in a crock pot, add some lemon, and enjoy. It’s not a new idea though. It’s a retro recipe Dr. Pepper pushed for the holidays back in the 1960s. But, like a lot of things it’s making a comeback on social media.