The company famous for mixing butter with coffee is releasing a new product. It’s not butter, if you can believe it. Over ten years ago, Bulletproof popularized mixing coffee with butter as a form of ...

ATLANTA -- Bulletproof coffee is a concoction that's making the rounds on social media. It's also known as butter coffee. Atlanta cooking instructor Gwenn Weiss agreed to test it out with 11Alive's ...

Over ten years ago, Bulletproof popularized mixing coffee with butter as a form of biohacking. Now the company is moving in a new direction, and hopping on a more recent trend: Cold coffee at home.