How to Make Sugar Syrup for Cocktails & Drinks
Sugar syrup — also known as simple syrup — is one of those bartender staples that sounds fancy but takes about five minutes to make. If you've ever wondered why your home cocktails don't quite taste like the ones at your favourite bar, there's a good chance this is the missing ingredient.
Unlike granulated sugar, which can sit stubbornly at the bottom of a cold drink, sugar syrup dissolves instantly and evenly — giving you smooth, consistent sweetness in every sip. Once you've made a batch, you'll wonder how you ever managed without it.
What Is Sugar Syrup?
Sugar syrup is simply a mixture of sugar and water, dissolved together over heat. It's a foundational ingredient in cocktail-making, used to balance acidity, soften bitterness, and add body to drinks. It's also used in baking, coffee, and desserts — but its spiritual home is behind the bar.
The standard ratio is 1:1 (equal parts sugar and water), which gives you a versatile, medium-bodied syrup. Some bartenders prefer a 2:1 rich syrup for a more intense sweetness and longer shelf life — but the 1:1 version is the perfect starting point.
Simple Sugar Syrup Recipe
Ingredients
- 1 cup (200g) white granulated sugar
- 1 cup (250ml) water
Method
- Combine the sugar and water in a small saucepan over medium heat.
- Stir continuously until the sugar has completely dissolved — this takes about 3–5 minutes. Don't let it boil.
- Remove from heat and allow to cool completely.
- Transfer to a clean, airtight glass bottle or jar and refrigerate.
Shelf life: Up to one month in the fridge. Add a small splash of vodka to extend it further.
Flavour Variations to Try
Once you've mastered the basic recipe, the fun really starts. Infuse your syrup while it's still warm by steeping any of the following for 20–30 minutes before straining:
- Mint — essential for Mojitos and Juleps
- Rosemary — brilliant with gin or vodka
- Ginger — adds warmth to whisky cocktails and mules
- Vanilla — gorgeous in espresso martinis and Old Fashioneds
- Chilli — for a spicy margarita that actually bites back
- Lavender — floral and elegant in gin spritzes
Classic Cocktails That Use Sugar Syrup
Sugar syrup is the backbone of more cocktails than most people realise. Here are some classics to get you started:
Mojito
Muddle fresh mint with lime juice and sugar syrup, top with white rum and soda water. The syrup keeps the mint from bruising too aggressively and gives the drink a silky texture that granulated sugar simply can't match. Ready to make one? Here's our full Mojito recipe →
Old Fashioned
A few dashes of Angostura bitters, a measure of sugar syrup, and a generous pour of bourbon or rye whisky over a large ice cube. Stir, garnish with an orange twist. Simple, perfect, timeless. Ready to make one? Here's our full Old Fashioned recipe →
Daiquiri
White rum, fresh lime juice, and sugar syrup — shaken hard over ice and strained into a chilled coupe. The balance of sweet and sour is everything here, and sugar syrup is what makes it sing.
Whisky Sour
Bourbon, lemon juice, sugar syrup, and an optional egg white for froth. Shake vigorously, strain, and serve over ice. The syrup softens the lemon's sharpness and rounds out the whisky beautifully.
Tom Collins
Gin, lemon juice, sugar syrup, and soda water over ice in a tall glass. Refreshing, easy to make in batches, and endlessly crowd-pleasing at a summer gathering.
Margarita
Tequila, fresh lime juice, triple sec, and a touch of sugar syrup to balance. Salt the rim, shake over ice, and strain. Add a chilli-infused syrup for a spicy twist that'll have everyone asking for the recipe.
Espresso Martini
Vodka, fresh espresso, coffee liqueur, and sugar syrup — shaken hard for that signature frothy top. Vanilla sugar syrup takes this one to another level entirely.
Why Every Home Bar Needs Sugar Syrup
Beyond cocktails, sugar syrup is useful for sweetening iced coffee, drizzling over fruit salads, soaking sponge cakes, and flavouring sparkling water. Make a batch on Sunday and you'll find yourself reaching for it all week.
The best part? It costs almost nothing to make, takes five minutes, and immediately upgrades everything you put it in. That's a pretty good return on investment.
Now go make a Daiquiri. You've earned it.