Sourdough starter,yes...but GRAVY starter ???
Last night, I did a pot roast...searing the roast with a salt/pepper/garlic powder/flour crust. Then I removed it from the Dutch oven..broke up all the yum yums from the bottom with some beef stock...added the meat back with a baggie of previously made gravy. That's when I realized...I ALWAYS have a bag in the freezer of gravy from the last time I did pot roast !!! That gravy has got to be several years old !!! Sound familiar ??? :):)