Thanks to all who ventured a guess as to the mystery box contents — three folks has the correct answer. We enjoyed reading all the comments; fudge or chocolates would also have been very much enjoyed at this time of year or any time.
Bragging rights go to Mildred (1st), Emma (2nd) and Anvilcloud (3rd).
The correct answer was cheese or rather cheeses as the box contained these 3 large ones (2 types of cheddar and 1 Swiss cheese).
We've received this gift annually from friends Barbara and John for more years than we recall. No complaints about that as we enjoy this gift long after the holiday season. Every year after its arrival, we call to let them know it arrived and to thank them. When we add that you shouldn't have, they reply, we enjoy doing it.
Their enjoyment and our thankfulness add to our special holiday memories.
Do you have similar happy holiday surprises too?