A classic gimlet

• 1 jigger dry gin
• ½ teaspoon lime cordial
• ½ teaspoon sug

Take a big, wide-mouthed champagne glass and put in the gin, followed by the lime cordial, then stir in the sugar syrup, if you need to use it. Fill up with chilled plain water, add an ice cube and a thin slice of big, green lime.