I always carry ice packs and a yeti cooler. I have some other carry rigs, but 99/100 times if you see me out and about, that's me: cowboy hat, wayfarers, and yeti cooler.
So I just keep sour patch kids all the time in my pack.
But I'm always up for something else, especially when the SPKs are in an "ick" season. I appreciate the recommendation. SPKs have an absurdly high glycemic index though and seem pretty predictable for me.
I really need to get proper glucose tabs and stuff, and be like a "professional diabetic"... but I'm working on time-in-range, not "did you swab with alcohol" at this point, lol. I just feel good that I'm not shooting through my clothes.
Sorry for the day, fellow traveller, hope you get things nailed shortly.
The best high-GI food I have found is Welch's fruit snacks. They are superior to glucose tablets: (1) Can be swallowed whole quickly and easily, or dissolved by saliva. (2) More concentrated, so you can pocket or pack more glucose in less space. (3) Can be compressed in a pocket or backpack without turning to powder that leaks everywhere. A packet of fruit snacks is 17 g of carbohydrate, which is small enough to catch moderate crashes and large enough when doubled to catch major crashes.