How to cook in a medieval setting
Alright. As some of the people, who follow me for a longer while know... I do have opinions about cooking in historical settings. For everyone else a bit of backstory: When I was still LARPing, I would usually come to LARP as a camp cook, making somewhat historically accurate food and selling it for ingame coin. As such I know a bit about how to cook with a historical set up. And given I am getting so much into DnD and DnD stories right now, let me share a bit for those who might be interested (for example for stories and such).
🍲Cooking at Home
First things first: For the longest time in history most people did not have actual kitchens. Because actual kitchens were rather rare. Most people cooked their food over their one fireplace at home, which looked something like what you see above. There was something made of metal hanging over the fireplace. At times this was on hinges and movable, at times it was set in place. You could hang pots and kettles over it. When it came to pans, people either had a mount they would put over the fire or some kind of grid they could easily put into place there with some sourts of mounts (like the two metal thingies you can see above).
If you have a modern kitchen, you are obviously used to cook on several cooktops (for most people it is probably four of them), while in this historical you obviously only had one fire. Of course, as you can also see in the picture above, you could often put two smaller pots over the flames or put in a pan onto the fire additionally. But yes, the way we cook in modern times is very different.
Because of this a lot of people often ate stews and soups of sort. You could make those in just one pot - and often could eat from the same stew for days. In a lot of taverns the people had an "everything stew" going, which worked on the idea that everyone just brought their food leftovers, which were all put into one pot everyone would eat from.
Now, some alert readers might have also noticed something: What about bread and pastries? If you only have one fireplace and no oven, how did people make bread?
Well, there were usually three different methods for this. The most common one was communal ovens. Often people had one communal oven in a neighborhood. Especially in a village there might just be a communal oven everyone would just put their bread in to bake. (Though often this oven would only be fired up once or twice a week.)
The second version to deal with this some people used was a sort of what we today call a dutch oven. A pot made either of metal or clay with a lit you would put into the hot coals and then put bread or pastries into that, baking it like that.
There was also a version where people just baked bread in pans on the fire, rotating the bread during the baking process. At least some written accounts we have seem to imply. (Never tried this method, though. I have no idea how this might work. My camp bread was mostly done in dutch ovens or as stickbread.)
Keep in mind that the fireplace at home was very important for the people in historical times. Because it was their one source of warmth in the house.
🏕️ Cooking at Camp
Technically speaking cooking at camp is not that different - with the exception of course that you have to drag all your supplies along. And while in Baldur's Gate 3 and most other videogames you can carry around several sets of full-plate armor and several pounds of ingredients so that dear Gale can whip something up... In real life as an adventurer running around you need to make decisions on what to take along.
If you have read Lord of the Rings, you might remember how many people have criticized Sam for actually dragging all his cooking supplies along and how sad he was for not being able to cook for most of the time, because they were very limited in taking ingredients along.
So, yes, if you are an adventurer who is camping out in the open, you will probably need to do a lot of hunting and gathering to eat during your travels. You can take food for a couple of days along, but not for a lot.
A special challenge is of course, that while you can cook food for several days when you are at homes, you do not want to drag along a prepared stew for several days. So usually you will cook in smaller batches.
A lot of people who were journeying would often just take along one or two pots along.
So, what would you eat as an adventurer travelling around while trying to save the world from some evil forces? Well, it would depend on the time of the year of course. You would probably hunt yourself some food. For example hares, birds or squirrels. Mostly small things you can eat within one or two days. You do not want to drag along half a dead deer. In the warm months you might also forrage for all sorts of greens. You also can cook with many sorts of roots. Of course you can also always look into berries and other fruits you might find.
Things you might bring with you might be salt and some spices. A good thing to bring along would be herbs for tea, too, because I can tell you from experience that water you might have gotten from a river does not always taste very well - and springs with fresh water are often not accessible.
Now, other than what you can access the basic ideas of camping fires and cooking with them has not changed in the last few thousand years. While modern people camping usually have a car nearby and hence will have access to a lot of ingredients. But the general ideas of how to build a fire and put a pot over it... has not really changed.
Just keep in mind that for the most part in historical settings until fairly recently, there was not much terms of proper kitchens. People cooked over an open fire and hence had to get at times ingenius about it.