What kind of food will make you gain weight?

Most of the people I meet ask for my advice about how to weight loss, but some of my clients are actually trying to pack on pounds, and it's not as simple as it may seem. Every once in a while I'll read about an actor who had to gain weight for a role, and they talk about how awesome it was to down pints of ice cream, pasta, bread, cheeseburgers, and doughnuts. 

https://www.youtube.com/watch?v=3JqwrvpGsjo