Thanks for the link Giga mike, wonder if they are any good, worth a try.
I also vote for snickers bars. The large size are too big for me, so I buy the bags with the two to three bite sized snickers in them, like the ones you get on Halloween (that reminds me , time to raid the kids candy bowl

) I carry gu gels too and use them when I or someone in my group is crashing.
We brought Lindt Chocolate on our last summit and ate a huge bar on top, nothing like gourmet chocolate when you have summited and need the extra boost to get down, my brother in-law still talks about it.