How to Make Simple Syrup

If you’ve ever followed one of my cocktail recipes and hit the words “simple syrup” and thought — okay, but what does that mean — this one’s for you. Simple syrup is exactly what it sounds like. It’s sugar, dissolved in water, cooked down into a smooth, pourable sweetener that blends into cold drinks without leaving a gritty layer of undissolved granulated sugar at the bottom of your glass. It’s the backbone of almost every cocktail, iced coffee, a lot of lemonade, and, honestly, any drink you want to sweeten without sugar sinking to the bottom of the glass.

If you make drinks or host, I always recommend making a batch to keep in your fridge. Once you have it on hand, your whole drink game changes. Bartenders keep it stocked for a reason.

Ingredients for Simple Syrup

White sugar — plain white granulated sugar works perfectly here and gives you a neutral sweetness that won’t compete with whatever you’re adding it to. You can also use brown sugar or turbinado sugars if you want a richer, more molasses-forward flavor, but white sugar is the classic choice for a clean, versatile sweetener.

Water — filtered water is ideal if your tap water has a strong taste, but whatever you have works fine.

How to Make Simple Syrup

Making simple syrup is as straightforward as it gets, but there are a few things worth paying attention to so you get it right every time.

Start by combining your sugar and water in a small saucepan. You’re working with a 1:1 ratio — one part water, one part sugar — so measure them equally and add them both to the pot together. Give it a quick stir so the sugar starts to absorb the water before the heat even comes on.

Set your stove to medium heat and bring the mixture to a gentle boil, stirring occasionally as it heats up. You’ll watch the sugar dissolve into the water as the temperature rises. Keep a close eye on it — you’re not trying to make candy here, so you don’t want it at a rolling, aggressive boil.

Once it reaches a boil, reduce the heat to a simmer and let it cook for 10 to 15 minutes. This is where it all comes together. The water evaporates slightly, the sugar fully dissolves, and the whole mixture becomes a lightly thickened, glossy syrup. You’ll know it’s ready when it coats the back of a spoon and looks clear and smooth.

Remove the saucepan from the heat and allow the syrup to cool completely to room temperature before transferring it or using it in a recipe. Pouring hot syrup straight into a cocktail will dilute and warm it — not the move.

Once cooled, pour into an airtight container. A mason jar or an airtight bottle both work great and can be stored in the fridge for 2-4 weeks.

Tips for the Best Simple Syrup

Don’t rush the simmer. Medium heat is your friend here. If you crank it to medium-high heat, you risk cooking the syrup too fast and ending up with something thicker and stickier than you want.

Stir early, then leave it. Give the mixture a good stir as it heats up, but once the sugar dissolves and you hit a simmer, you can mostly leave it alone.

Cool completely before storing. Putting hot syrup into a cold fridge can cause condensation, which shortens its shelf life. Let it come all the way down to room temperature first.

Label your jar. Especially if you’re making flavored variations, write the date and flavor on the jar so you know what you’ve got and when you made it.

Freeze it for longer storage. If you’ve made a big batch and won’t use it all in a month, pour it into ice cube trays and freeze it. Pop out a cube whenever you need it.

Simple Syrup Variations

Once you’ve mastered the basic simple syrup recipe, the variations are where things get really fun. Here’s how to make flavored versions:

Herb syrups: Add fresh herbs — mint, rosemary, lavender, or thyme — to the mixture while it simmers. Once the syrup is done, remove from heat and let the herbs steep for an additional 20–30 minutes before you strain them out. These are gorgeous in lemonade, spritz cocktails, and iced tea.

Spiced syrups: Add whole spices — cinnamon sticks, star anise, ginger slices, or cloves — to the pot along with the sugar and water. Simmer together, then strain. A ginger simple syrup is incredible in a mule or a Tom Collins cocktail variation.

Citrus syrups: Add strips of citrus peel (lemon, orange, grapefruit) to the saucepan while it simmers for a bright, aromatic syrup.

Vanilla syrup: Add a split vanilla bean or a splash of good vanilla extract to the mixture. Rich, warm, and endlessly useful.

Rich simple syrup: Use a 2:1 ratio of sugar to water instead of equal parts. The result is a thicker, more intensely sweet syrup that’s popular in classic cocktails like the Old Fashioned. A little goes a long way.

Honey syrup: Swap the white sugar for honey and reduce the simmer time — honey dissolves much faster. Honey syrup adds a floral depth of flavor that works beautifully in cocktails with bitters.