Marc,
Have just got back doing the Verdon Canyon 102km race and the food was poor and difficult to swallow for the most part - dry bread, Tuc biscuits, dry cake, crisps etc.
We were all of the opinion that we'd prefer something that could be swallowed without chewing for 10minutes........so here are some suggestions
buttered malt loaf, buttered sandwiches, bananas cut in half. chocolate, coke.
Most of us will be full of gels and jelly babies so more 'normal' food is generally well received.
If things like these are available then the Tuc biscuits are great!
On the night stages things like hot soup or pasta would be a good idea.
Any other suggestions out there so we have a chance of getting what we'd like?