I tinkered with this out of necessity, and whilst I can't compare with the original it was, nevertheless, rather pleasing. Instead of muddling cloves, I used a 1/4 shot of Falernum, and instead of Champagne, I used 1/2 of a miniature bottle of Codorniu Cava that had been languishing in the back of the fridge. The perfect accompaniment to a night binging 'It's A Sin' on Channel 4.