So, apologies if I'm missing something obvious.
The handbook mentions you can add bone broth to a meat stew before cooking, but I've not been able to figure it out, just managed to delete a few litres of bone broth in the process, how do you actually go about adding stuff like that? Just adding the 0.1L as an ingredient in a cooking pot wasn't working, and I don't see any other explanations in the ingame guides. >.<