Oh and one last suggestion- try survival food tablets (like for camping).
They're similar in texture (a bit less quick to dissolve) to those baby melts and you can get them on Amazon. The ones I have are called "The Survival Tabs" and they have strawberry, chocolate, vanilla and butterscotch flavors. The tablets are about the size of a tums and 20cals each. It won't be hugely satisfying but it's a lot of nutrients per mouthful at least
https://www.amazon.com/Survival-Tabs-Replacement-Activities-Preparedness/dp/B00S5F59TE if I'm allowed to put a link
I keep something like... https://www.amazon.com/Survival-Tabs-Replacement-Activities-Preparedness/dp/B00S5F59TE No stove to carry, eat on the go. Can’t go wrong.
Why not get human rations? These have more calories and last 25 years: https://www.amazon.com/Survival-Tabs-Replacement-Activities-Preparedness/dp/B00S5F59TE/ref=zg_bs_7491113011_4?_encoding=UTF8&psc=1&refRID=M5XNDYVGD5Q4J2RQ1XFF