A Moveable Feast

In my family, holidays (and combined birthdays, celebrated quarterly) are marked by a dinner at my grandmother's.  All the grown-up women bring a dish.  I think I am a grown-up woman now, so I want to bring something to these dinners.  But, there is a problem: I live 2 and a half hours away from Granny's.  And we arrive typically two days before the dinner.  So this Easter, we will have a dinner, but we will be getting into town the Friday before.  Thus, my dilemma: I need something that can be made well in advance and can be transported (and won't melt in the car).  I'm thinking some kind of bread.  I am also thinking I just need to live closer to home.