There used to be Crosse and Blackwell plum puddings in our grocery store. When that long-time family business was taken over by an international corporation, we never saw them again - as well as a lot of other interesting seasonal things.
I loved that plum pudding and hard sauce. Even though it was canned, it was great.
The plum pudding must have been popular.
An old dented.....empty ....Crosse and Blackwell plum pudding can is priced at $58 on ebay.