First, I have 1 water bottle, my Camelbak, and 1 water bottle with gatoraid.
Then, I have Clif Shots in my small bag on my bike.
In my pockets, I might carry:
1) A package of peanut butter crackers.
2) Clif Bars- Peanut Butter one.
3) Sport Beans (they DO start to melt and stick together in 100F degrees heat... if you are out for 3-6 hours).
We also stop at stores, so I might buy something in there... like a Luna bar. I like the Nuts over Chocolate... so I can't carry that on the bike with me, as it will melt.
Just find some snacks that have carbs, fill you up to some extent, might be eaten while riding (I have had to do this when I get hungry before the next rest stop), and won't melt.
Good luck!
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"