I really like going on long rides, but I've never been happy with the way I get energy into my body. What do people do for especially long rides such as double centuries, or rides over 100 miles in mountains?
My basic method is to eat well before the ride, and then to guzzle gatorade and eat energy bars (normally Odwalla) at measured intervals during the event. On the STP last year, I ate 10 bars and drank about 2 gallons of gatorade. The gatorade isn't too bad, but after you've eaten a bunch of energy bars, they all taste like oversweetened cardboard, paste, or plumbers putty depending on the brand.
I would like to consume all the calories through liquid that is possible. That is partially to regulate caloric intake better, but also because I really don't like to eat when I'm riding. Is there anything high in calories that's not sweet that will give good energy? If not, what's my best option? I really like the long rides, but I absolutely dread the food part for anything much over 100 miles.