Perfectly in line with H&H's contemporary setting:
Drying/smoking of meat and fish.
Drying would not need a new building. Existing drying racks could be used.
Drying should take a long time, comparable to the higher tier cheese's stages perhaps.
All kinds of meat and fish can be dried.
Drying could either give huge increases to the dried item's base FEP, or there could be new FEP values altogether for dried items.
Examples: Beef jerky, Dry Deer, Parched Pork, Salmon Strips
Or just Dried (itemname)
Smoking would require a new building: the smoking kiln.
A smoking kiln needs to be fueled with boughs.
Smoking meat/fish takes less time than drying. I'm thinking 1 - 2 days
Again, smoked items either get a decent boost to FEP, or new FEP values altogether.
Examples: Smokey Bear, Salty Sturgeon, Foggy fox
Or just Smoked (itemname)