Most suitable and tasty ride food?
A few years ago I ran across a recipe that Team Garmin uses (or did at the time). It's boiled potatoes with a bit of olive oil and salt. If you wrap it up right it's easy to carry, unwrap and eat while riding. I'm not sure how many of these you could carry. I've tried it on medium rides (40 to 50 miles) and they were great. I can't find the text of the original recipe but here is a video that shows how to cook and wrap them.

They are very cheap, they do require that you have some water to get them down, but the olive oil helps a lot. The potassium in the potato is great and they digest easily. I'm not sure I'd eat 5 or 6, but perhaps as one or two of the 5 or six snacks you go through.