plum porridge
/ˌplʌm ˈpɒrɪdʒ/Now historical
noun
A thick soup or porridge containing raisins, currants, spices, etc., often flavoured with brandy, claret, or another liquor and traditionally served at Christmas.
- Perhaps originally containing prunes..
Origin
Late 16th century; earliest use found in John Lyly (1554–1606), writer and playwright. From plum + porridge.