Pity the poor driver. There's everyone else getting stuck into their Champagne or mulled wine or gins and tonic, while he or she is having to make the best of a glass of lemonade.
So, believing that he or she deserves better, here's a gorgeous recipe for Chocolate Orange (on the left), from Ice (otherwise known as Simon Atkinson), an expert on cocktails.
The Delia Online Cookery School: Watch how to zest and juice citrus fruits in our video here.
This recipe is from Delia's Christmas Easy Magazine 2003 Makes 4 tall glasses
In a blender or food processor, blend the ice, ice cream and juice together till smooth.
Then, decorate the insides of the glass with chocolate sauce. To do this, drizzle a little chocolate from the bottle into the bottom of the glass. Then, holding the glass at an angle, squeeze the sauce from the rim to give a vertical line down one side. Turn the glass and repeat until you have about 8 vertical lines.
Pour the orange mixture into the glasses and decorate each one with a few fresh or tinned mandarin segments.