the horse with, but never give the horse the treat until you already have the lead rope attached. many horses will figure out that they can take the treat and then turn just out of your reach.
however, if the horse is turned out with other horses, bringing food into the pasture could cause a very dangerous situation. be extremely careful not to let yourself get in the mix. horses will play and fight with each other regardless of where you are standing, so don't get in the way!
sometimes it is difficult to catch a horse at pasture. practice going to the pasture regularly to visit and pat your horse, without 