With that high contrast and the dark around the corners.
I'm really new to photography, but two things I was thinking, either they used something like a spotlight on the seen and just used smaller aperture and higher shutter speed. Or it's something done in photoshop.
And actually now that I think about it, this lighting is similar to that used in a lot of different beer commercials. And I'm just dying to try to figure it out.
Thanks for any insight.