I don't have gels and sports drinks at all.

In reading everyone's choices here, I'm probably too illogical for the touring I've done and 90% over the past 20 years has been self-supported multi-day as well as multi-wk. bike touring with my partner by cycling with our own panniers, etc.:

Banana, small sandwich, muffin, nut bars (ones glued together with honey, etc.). any of this preferably with water or natural fruit juice drink.

I agree that apples just are too bulky and "hard" to digest while eating under a short stop. Oranges are too messy unless you choose tangerines.

If I have 1 banana, I absolutely must have a drink with it, since I find a banana tends to dry out my mouth.