Whisky Sour: Almost An Expert No. 4

How to prepare a delicious whisky sour. Plus, the science of umami.

What's a better mix than science and booze? In this episode of our new video series, Popular Science_ Art Director Todd Detwiler shows you how to make a delicious whisky sour using Glenfiddich (which, full disclosure, advertises in_ Popular Science_). Plus, the science of umami._