The box of Quality Street chocolates. (WC: Return of the Autons)
Quality Street was a brand of chocolate.
Jo and Clifford Jones had a tin of them in their home at some point in the early 21st century. (WC: Return of the Autons)
The Twelfth Doctor apparently had some with him whilst on a particular adventure with Bill Potts, which she ate the last of. (COMIC: The Promise)