Gin & Tonic Recipe: Ratios, Ice and Garnish
A Gin & Tonic needs only gin, tonic and ice, but proportions make a difference. Start with one part gin to two parts tonic: our recipe uses 60 ml gin and 120 ml tonic. Choose a garnish that suits the gin, then adjust to taste.

Ingredients for one Gin & Tonic
- 60 ml gin
- 120 ml well-chilled tonic water
- Plenty of ice cubes
- A lemon or lime wedge or strip of peel
- Optional: up to 15 ml lemon or lime juice for our more citrus-forward variation
How to mix it
- Fill a highball or roomy balloon glass with ice.
- Pour in the gin. If you want the citrus variation, add a little juice now and adjust to taste.
- Pour the cold tonic slowly into the glass.
- Give it a gentle stir to combine, then add the garnish. Serve straight away.
What is the best gin-to-tonic ratio?
There is no single ratio for every gin and palate. At 1:2 the gin stays prominent. For a longer drink, try 1:3: keep the gin at 60 ml and use 180 ml tonic, with a glass large enough for the extra volume and ice. Our glassware guide can help with the choice.
Gin & Tonic questions
Does it need lemon or lime juice?
No. A citrus garnish can be enough. Our optional 15 ml juice makes a noticeably more acidic version; start with less if you want the gin's aromas to lead. Lemon, lime or another garnish should complement the particular gin.
How do I keep the tonic fizzy?
Use chilled, freshly opened tonic, add it after the gin and ice, and avoid vigorous stirring. Do not shake the drink. Tonic brings sweetness and bitterness; replacing it with soda gives a different drink.
Prefer mint and rum? Try our Mojito recipe. For something to wear beyond the bar, explore the Gin & Tonic collection.
Buying for someone whose usual is a G&T? Our Gin and Tonic gift guide helps you choose a cocktail-inspired cap or T-shirt to suit their style.