I am so new at this but here is what seems to work for me:
I take my bike bottle and fill it with 1/3 gatorade, 1/3 apple or grape juice (unsweetened) and 1/3 water. I just eyeball the amounts and it seems to be doing ok so far. Not very scientific but way tastier than plain gatorade alone.
I ride primarily in the very early morning and usually have a glass of milk and a luna bar pre-ride. For an extra boost (once again, not very scientific or trendy here just what works for me) I take a packet of fruit snacks and throw it in my undersaddle bag. We have 2 elementary aged boys and ALWAYS have fruit snacks around...the spongebob ones are my favs.
When I get back I usually make a fruit smoothie with a frozen banana, yogurt and a low carb high protein drink (muscle milk light for example or slimfast low carb).
Like I said, I'm pretty new to this and I'm sure I could be doing something better but this routine has seemed to work so far.
You must do the thing you think you cannot do.
- Eleanor Roosevelt