Hey Hearthfolk!
I'm sure other people have mentioned these suggestions in the past, but there are a few things that I've come across that would REALLY make sense for it to be in the game. Taking historical accuracy into account, some of these have been around for over a millenium in some variant or another.
Oil:
Olives are in the game as what feel like an after thought, a simple additive that 1) is added to Bread raw (which are incredibly bitter without being processed in some way,) or 2) is eaten on its own for laughable FEPs (See point 1 on olives tasting like butt). We have extraction presses, olives, and loads of foods that could benefit from cooking with it. Rather than considering it a "Spice," have an additional modifier for Oils as well! Hell, even Linseed oil could be used to cook with, so there's some variance to be had here. Even using fat or butter in place of oil could have some viability. I'm not saying we need to have fried chicken (Batter's in-game as well..) but I'm saying we need to have fried chicken. Definitely oils though. Seriously, oil has been a trade commodity for hundreds and hundreds of years BC. Make Oil Great Again.
Quiches:
Medieval cuisine was very much a hodgepodge of "Whatever we can make work," and Quiches were a prime example of this. They weren't cited by name until the 18th century or so, but variances of the Quiche have been in use since the middle ages. Most commonly referred to as "Flans." This could be a great use of egg, cheese, and other "mid-game" food sources for some really robust FEP output. Tarts would be another variance of the word. It's the Stir Fry of pastries.
Nut Recipes:
There are a handful of nuts in the game, and each of them is astonishingly useless. Walnuts, Chestnuts, Hazelnuts, and Almonds are all fairly rare commodities in a traditional sense, yet they find almost no use in Haven. Most white girls here in America, and every other person in sensible parts of the world, have learned of the joys of Hazelnut spread through Nutella. I have no doubt that similar uses couldn't be used within Haven. Walnut pies (harkening back to tarts, in this case,) Almond milk (literally water and almonds,) and Roasted Chestnuts are all very simple recipes that have been around for centuries upon centuries upon centuries. Heck, Almond Butter can be made in a grindstone/pestle with lots of elbow grease, and can really come to life with some extra oil added (see above.) Give us orchardists reason to grow them aside from their very attractive wood.
That's what I've got for ideas, and Jorb willing, these'll see the light of day. I don't spend a huge amount of time cooking in Haven, but I'm finding there are a surprising number of commonplace food items that have never made the light of day. Inversely, we've been graced with unparalleled culinary excellencies like the "Creamy Cock."
I hope I've made a compelling argument. <3