Solid soylent always seemed like a good idea to me. Goo is messy and not super appetizing, and besides, eating things is generally a positive experience. I wanted to create a solid recipe that was good tasting and agreeable to eat, easily portable, not easily spoilable, inexpensive, and made as much as possible with ordinary ingredients that one might have lying around the kitchen.

I think I've been pretty successful in achieving those goals. Baked oatmeal soylent is tasty--it's dense, nutty, barely sweet, and really satisfying. It looks like it's going to taste like an oatmeal cookie, and to a minor extent it does, but rather than coming off as sweet it seems rich and high in protein, in a good way, reminiscent of eating meat. It is super portable--bake a day's worth in half of a 9x13 pan and it forms a dense square, like a pan of cookie bars. Cut this into quarters and you have meal sized squares that can easily go into a plastic bag in your backpack. They require no refrigeration and keep just fine for a couple days. The cost is barely over $3/day, and, aside from protein powder and added nutrients, it's made with regular kitchen things rather than weird internet things. Somehow this makes it seem less foreign, and it also makes it much cheaper to get started making.

My big concern with solid soylent was whether it would be adequately satisfying, given its caloric density.

Prep

Dump everything in mixer (mix dry things first, then add eggs and oil), pat into 9x13 pan. One day's worth will take up half the pan, so it's quite convenient to make two days' worth at once. Bake for 10 mins at 350 F. Cool, and cut into squares.

Known bugs:

--needs integral source of calcium

--manganese is a bit high

First taste: Not sweet enough, although the protein powder totally works. Quite fatty. Might go higher on protein, lower on oil. Need a better way of measuring oil--either by weight or more accurately in ml.