Dale DeGroff, author of The Craft of the Cocktail (www.exclusivebooks.com), knows more drink recipes than Lindsay Lohan knows rehab facilities – and, fortunately, he’s also figured out a short cut.

The following formula will help you mix any distilled spirit with citrus juice and sweetener.

“It’s the foundation for so many drinks, from a gin fizz to a mojito,” says DeGroff. To make the drinks below, simply shake the ingredients with ice and strain into a cocktail glass. You can increase the alcohol portion by up to 30ml to suit larger Martini glasses without altering the balance of the drink, DeGroff says.