This is an old favourite of Tracey's - and also one where she's been served some very poor examples in the past.

So, here's my version, which certainly does have her official seal of approval!

Fill a cocktail shaker two-thirds full of ice. Add a large measure of vodka, and a large measure of Cointreau.

Slice a round from the centre of a lime, and squeeze the juice from the remaining pieces into the shaker. Shake hard for a few moments.

Add four large measures of cranberry juice to the shaker, shake again briefly and strain into a cocktail glass. Garnish with the round of lime cut earlier and serve.