OK, so this was all great. I managed to make something edible with access to a full kitchen, electrical power, & the internet. What benefit would acorns have if you were stuck in the woods? Although time & labor intensive, you could make something edible from them that would be filling.
(1) Find acorns. Depending on their size, ~75-100 should yield ~1+ cups of nut meat.
(2) Shell them using knife as chisel and hammer with short piece of wood. I would make an indent in a fallen tree to position them while I split them.
(3) Remove shells and collect nut meats, crush them with rocks until pieces are as small as you can make them. You want something like meal when you are done.
(4) Unless you want to go totally indian-style, dig a hole, and fill it with water & hot rocks to boil, hopefully you have a vessel such as a Sierra, canteen cup, or larger in your kit. I usually hike with a Heineken keg-can pot.
(5) Build fire and boil water, add 1/2" nut meal in cup, stir, let continue to boil until water turns color. If you have a bigger vessel you can boil more. Each boil was ~10 minutes for me. I am not sure what type of acorns I had, possibly white oak. The water only looked like weak coffee, nearly tan, on the first boil only. Then it lightened up to yellowish and continued to lighten until there was barely any color at all. Most sites noted that the water will be much darker on oaks other than white oak at the end of the boil.
(6) Strain nut meal through cloth, set aside, get water to boiling, add nut meal again, boil until water turns color.
(7) Repeat step 6 until water is "clear". I boiled 5X but the water still had a small amount of color in it.
(8) Taste the nut meal. If bitter, boil again, if not, grab titanium spork & eat. Supposedly this is a go/no-go step. They are unpalatable if not boiled enough to leach out the tannins. In this state the nut meal tasted like blanched almonds to me, no bitterness whatsoever.
(9) Start again at step 5, add another 1/2" & boil. Repeat until you are full.
(10) Posit: I'd bet on the last boil you could retain the water if it is fairly clear. If you had a bullion cube or other seasoning in your kit you could add it to make it more like soup or at least, more interesting.
If I had to and there was no easier alternative, I can completely see doing this under a wilderness survival situation. It would likely take you ~2 hours total prep time after the acorns were gathered and you began to shell them.