This is one of my bar manager Nick Strangeway's concoctions. It's based on an 18th-century drink – loved by the fellows of Oxford University – called a Bishop. It's great for using up leftover red wine.

1 lemon
1 orange
24 cloves
1 bottle of red wine
700ml of boiling water
250g sugar
The zest of a lemon
6 allspice
1 stick of cinnamon
1 star anise

Preheat the oven to 220C/gas mark 7. Stud the orange and lemon with the cloves, place on a tray and bake in the oven for about 30 minutes until they begin to colour; then leave to cool a little, quarter the fruits and place in a saucepan with the rest of the ingredients. Bring to the boil and simmer for 10 minutes. Strain or leave as it is and pour in to mugs or heatproof glasses to serve.