All you need to easily make homemade butter is one ingredient and a mixer.

Runners have discovered an unusual result of carrying heavy cream on a trail run: butter. The idea gained attention after a video from Oregon-based running creator Libby Cope showed that cream ...

The simple answer to this question is that Irish dairy cows eat fresh grass, and that grass contains an abundance of beta-carotene, which gives the butter its golden color. But what's beta-carotene, ...