>>796550Soylent.
One bag contains 2k calories, just mix with water in a 2:1 ratio.
Its the only thing I pack these days when I go camping. Each bag weights a bit over a pound. Its easy to make, requires no other utensiles, just a shacker jug.
I've been using Soylent for the last 3 years, so fucking simple. It taste good, and is really, really filling. Actually feel full after drinking a meals worth, I dont feel the need to snack on at all in between.
Kinda hard after only using it after about 4 days, so there is always 4lb bag of trailmix from Costco