Don’t you still have to replace the jar rubbers?
granny - Do you have an old Betty Crocker Cookbook? There’s a recipe in there for “filled cookies” that is da bomb for using up old jam. The best filling is tomato preserves, yum. It’s basically two sugar cookies with jam between much like a pop tart. They freeze well, too.
sounds like the cookies my mom made and they were delicious, she called them JimJams....the cookies were thin not fat but boy they were good...My daughter use to make a 2 or 3 (depending on what was available) fruit preserves. It was awesome...