I am a fan a Alton Brown of food
network fame...he claims to only have one unitasker in his kitchen..a fire extinguisher...which is bs, because I have rolled out biscuit dough with one while camping...
Lessee...Pressure cooker, makes stock pot, dutch oven
, pressure cooker, etc...portable water
jugs..the seven galon variety, makes good trim weight and can be used for solar heating
extra shower water
when expecting guests, they are bulky though...Nothing in the galley
has only one use...a good set of kitchen knives, makes food
processor, mandoline, ice crusher, board scraper, and obviously a knife..have used my big one eo crack coffee beans when grinder died, and can be used to amputate fingers of people who misuse my razor sharp cutlery...hand crank grain mil, I want one..can grind coffee, obviously, as well as spices, whole grains for baking...I have a cast iron griddle on the boat, which can obviously be used to cook, but makes a good heat sink to ward off the slight morning chill, when it is not worth lighting
a heater..Mixing bowls..can use them for alot more than mixing..a steel
marlinespike with a crescent wrench head
welded on, get one of these, and you'll never want to be without...