British snacks you would miss living in the USA

I'm sending a parcel (care package!) to someone in America and they have just said to surprise them so trying to think of snacks you wouldn't be able to get in the USA. Suggestions welcome!

So far I have:

Tunnocks tea cakes and caramel wafers
Cans of irn bru
Haribo
Thorntons toffee
Various biscuits including Jaffa Cakes
Mars Bars
Box of After Eights
Hula Hoops/Monster Munch as I know the person loves these

Is there anything you would really miss?