Butter in coffee is made by blending a tablespoon of unsalted, grass-fed butter into hot brewed coffee—often with MCT oil or coconut oil for added creaminess and health benefits. The result is a rich, ...

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.

You might be surprised to learn that adding butter to your coffee could help you lose weight, according to some studies. But don't start piling chunks of Lurpak into your latte just yet - there are ...