Dempsey revealed that Saturday's match ball will be signed by his team-mates and taken back to the United States.
"I'll get the match ball signed by some of the boys and take it back to the States - that will be a good memory to have," Dempsey told fulhamfc.com. "It's the first time I've got a hat-trick in my professional career so that's always good.
"It's great to get goals whenever you can, whether that's in the FA Cup, Carling Cup, Europa League or the Premier League. I'm just trying to get my goals tally up and trying to get more goals than the previous year and try to better myself."