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    Home » Cocktail Syrups

    How to Make Simple Syrup

    Published: Jun 1, 2022 · Modified: Jun 1, 2022 by Kimberly · This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases. · Leave a Comment

    Jump to Recipe - Print Recipe
    Open glass bottle of simple syrup with a cork stopper next to it and the text "How to Make Simple Syrup for Cocktails" above it.

    Simple syrup is one of those basic cocktail building blocks that you might not think about a lot. It's easy to overlook, but a good and consistent simple syrup is key to cocktail making. Not to mention, it's beyond easy to make! In this article I'll explain how (and why!) it's a great idea to make your own simple syrup at home.

    Clear glass bottle of simple syrup with a cork stopper next to it and some home decor items in the background.

    Simple syrup is just a mix of sugar and water, but it's actually a very important cocktail ingredient. It does add sweetness to the drink, but it also adds "body", or thickness, too. Think about how thick water is versus pancake syrup: the more sugar you dissolve in a liquid, the thicker it gets. Using sugar as a mixology tool can create new and interesting cocktail textures.

    Check out my Sage Syrup, Jalapeño Syrup and Caramel Syrup recipes to see some different techniques for making flavored cocktail syrups. Flavoring your syrup is a great way to bring in new layers of flavor to your drink creations!

    Jump to:
    • Why bother making simple syrup at home?
    • Ingredients
    • Ratio of Sugar to Water
    • Should you heat simple syrup?
    • Equipment
    • Instructions
    • Frequently Asked Questions
    • Top tip: Low Calorie Keto-friendly Simple Syrup
    • 📖 Recipe

    Why bother making simple syrup at home?

    The number one reason to make your own bar syrup is the cost. There is nothing wrong with buying commercial simple syrup, but it will definitely be more expensive. I'm not including prices since they vary so much, but at the time of writing, buying simple syrup for me is at least 10 times more expensive than making it.

    Of course, there are some overhead costs, like buying a container to store it in. Mason jars are great for this, or any kind of resealable glass bottle, and they can be reused endlessly.

    Store bought syrup is convenient and you know you will always be getting the same product. But, once you get the hang of how easy it is to make, you won't want to spend the extra cash on it! Save your money for the more difficult-to-make flavored syrups, like my favorite d'arbo Elderflower Syrup.

    Ingredients

    As you might expect, there are only two ingredients in a true simple syrup: sugar and water.

    • Sugar - for the cleanest, most neutral tasting simple syrup, you'll want to use refined white sugar. If you'd rather use unrefined sugar, you can use it the exact same way. Just keep in mind that it will always have a slightly more warm, caramel flavor to it. It'll also have a tint of brown because of the color of the sugar itself.
    • Water - filtered tap water works well if you have a good tap water source. You can also use bottled water.
    Ingredients for simple syrup on a countertop.

    Ratio of Sugar to Water

    Simple Syrup (1:1 ratio)

    The standard ratio in the United States is to use equal parts water and sugar. (Note that this is equal parts by volume, not weight.) Most U.S. drink recipes are based on this ratio, unless it says to use something different.

    This one-to-one ratio syrup is thinner than honey, and about the same consistency and sweetness as maple syrup. It's super easy to make and keeps well in the fridge.

    Rich Simple Syrup (2:1 ratio)

    Doubling the amount of sugar in the syrup will give you Rich Simple Syrup. (This syrup is actually the standard in United Kingdom bars, so keep that in mind if you are following a UK recipe!)

    Rich Simple Syrup is thicker and sweeter than one-to-one. There is less water, so it does offer a little more control over how diluted your final drink will be.

    Rock Candy Syrup

    It's pretty rare to see Rock Candy Syrup in a cocktail, unless you're making a traditional Mai Tai or other Tiki recipe. This syrup calls for completely saturating the water with sugar, which just means putting sugar in until you literally can't add any more in there.

    Obviously this syrup is very sweet, and also very thick. If you want some deeper info, check out this link on what makes a genuine rock candy syrup. Basically, you need to make actual rock candy, and the syrup is what is left over from that process. If you want to give this syrup a taste test, there are a few commercially available types, like this Tiki Rock Candy Syrup by BG Reynolds.

    Glass bottle with a quilted pattern, closed up with a cork bottle stopper, on a gray countertop.

    Should you heat simple syrup?

    Whether you heat your syrup or not, it's still going to be good! My personal preference is to heat it, but there are arguments for not heating it too.

    Making the syrup without heat

    The cold method of making simple syrup is great because it is so easy. Just combine the room temperature water and sugar in a container, and mix or shake until the sugar is dissolved.

    Cold method syrup tends to be a little thicker than heated syrup, because the sucrose does not break down. The drawback is that it takes a while for the sugar to fully dissolve. Also, because you are not heating the liquid and killing any germs, it does tend to mold a little more quickly than hot method syrup.

    If you use superfine sugar, also known as caster sugar, it will dissolve faster. You can make your own caster sugar by processing regular granulated sugar in the blender or food processor. I don't suggest using powdered sugar (aka confectioner's sugar), because it has added cornstarch that will affect the syrup.

    Making the syrup with heat

    The hot method of making simple syrup involves heating the water and sugar together. The heat allows the sugar to dissolve more quickly. As long as the mixture gets hot enough, it also kills any germs that might have been in the mixture too.

    I've found that making syrup with the hot method allows it to keep for much longer in the fridge. Since you have to wait for it to cool down first before using it in cocktails, it is kind of a toss up whether the hot or cold method is faster.

    One thing that affects the hot method is the breakdown of the sucrose in sugar into fructose and glucose. The longer it heats, the more of the sucrose breaks down, which makes heated simple syrup a little thinner in consistency. It also makes the heated syrup have a tiny bit sweeter of a taste.

    The last advantage I'll mention to heating up simple syrup is that it is less likely to crystallize when you store it in the fridge. This is because some of the sucrose has broken down, and the presence of the broken down sugars keeps it from forming crystals in your container.

    Glass bottle filled with simple syrup, with a cork stopper next to it and a white saucepan and silver funnel in the background.

    Equipment

    You'll just need a couple of things to make this syrup. The most important is some sort of sealable container, preferably glass, to store it in. Mason jars are a great option (like these 12 ounce Mason jars).

    I personally love using glass bottles with a stopper, because they're easy to pour with and nice to look at! If you're making a full recipe, you'll need a 10 ounce container to hold the whole batch of syrup. The bottles I've used in my pictures are actually these 8-ounce bottles, so I had a little left over to use in a cocktail.

    If you're using the hot method, you'll also need a small saucepan or a heatproof microwaveable container, and a small funnel to transfer the liquid.

    Instructions

    Stovetop Method

    Start by measuring out your water and sugar. I use a scale to measure out the sugar so I can just measure it straight into the pot, but you can also use a dry measuring cup.

    Add the sugar and water into your pot, stir to combine and place the pot on the stove over medium-high heat.

    Pouring sugar into a saucepan and weighing it on a food scale.
    Stirring water and sugar mixture with a spatula in a saucepan.

    You can stop as soon as the sugar is dissolved and let the mixture cool. If you want the syrup to last longer, though, bring the mixture to a boil.

    Then, reduce the heat to medium-low and simmer for 3 minutes. This will kill any bacteria lingering in the mixture, and also start to break down some of the sucrose, so the resulting syrup will actually taste a little sweeter.

    Remove the syrup from the heat and allow it to cool to room temperature.

    Boiling simple syrup in a white pot on a hot plate.
    Hot simple syrup in a white pot cooling on a countertop.

    Once the syrup is completely cooled, use a funnel to pour it into a resealable container. Seal up the container and store it in the refrigerator for 2 to 4 weeks. Discard if you see any signs of mold.

    Using a funnel to pour syrup from a pot into a bottle.
    Bottle of simple syrup on a counter with a white pot and silver funnel in the background.

    Microwave Method

    The microwave method of making simple syrup is similar to the stovetop method above, since you'll be heating up the water and sugar mixture. Instead of a pot, you'll need a heatproof container like a glass bowl or measuring cup.

    All microwaves are different, so be careful not to overheat the mixture (trust me... you don't want this stuff splattering all over your microwave!) Start by microwaving it for 30 seconds, then give it a stir with a spoon or spatula. Continue microwaving it in 20 second intervals until all the sugar is dissolved.

    Once the sugar is dissolved, let the syrup cool to room temperature. Then bottle it in a resealable container and store it in the refrigerator for 2-4 weeks. Discard at any sign of mold.

    Note: If you want to make sure any bacteria is killed in the syrup, you can use a kitchen thermometer to check the temperature. Bring the temperature up to at least 165°F (74°C) by heating it in 10 to 15 second intervals.

    Simple syrup in a glass bottle with a cork stopper on a gray countertop.

    Cold Method

    The cold method of making simple syrup is probably the easiest! It does take longer for the sugar to dissolve in room temperature water, but there are some ways you can make it go faster.

    Start out by combining the sugar and water in a resealable container. A mason jar works great for this method. Instead of just stirring or letting the mixture sit out, seal up the container and shake it.

    You don't have to shake it constantly, but give it a 30-second shake, then rest. Continue until all the sugar is dissolved. (If you want this to go even faster, use a blender instead of shaking!)

    Store the syrup in the same container you made it in, or transfer it to a resealable bottle if you'd like. Store in the fridge for about 2 weeks, and discard at any sign of mold.

    Hint: With the cold method, it will go faster to use superfine sugar, AKA caster sugar, since the sugar particles are smaller.

    Frequently Asked Questions

    What is the point of simple syrup?

    Simple syrup gives a drink sweetness without leaving undissolved granules of sugar in the glass. It makes the whole drink have the same amount of sweetness, too, rather than it getting sweeter as you drink because more sugar has dissolved.

    Can you substitute simple syrup?

    Absolutely. Maple syrup is a great substitute for simple syrup because it is about the same consistency and sweetness. You can also substitute agave nectar or honey, although they will impart some flavor to the drink as well (and you will likely want to dilute the honey, since it is thicker and sweeter than this syrup).

    How long does homemade simple syrup last in the fridge?

    It will last about 2 to 4 weeks if stored in the fridge. Discard it if you see any signs of mold or cloudiness. If you are going to be using it exclusively for cocktails and want it to last a little longer, you can add an ounce of plain vodka. This will keep the bacteria at bay for a couple of weeks longer.

    Top tip: Low Calorie Keto-friendly Simple Syrup

    If you want to make a low-calorie version of simple syrup, you can use a sugar alternative. My preferred sweetener is allulose, because it tastes almost exactly like sugar. Not only that, but it creates a syrup with the thickness of normal simple syrup. Just use 225 grams (1 cup plus 2 Tablespoons) of allulose per cup of water to match the sweetness of this recipe.

    📖 Recipe

    Glass bottle filled with simple syrup with a cork next to it.

    Simple Syrup

    Kimberly Salem
    Simple syrup is a staple for mixing up cocktails, and it's super easy to make at home.
    5 from 1 vote
    Print Recipe Pin Recipe
    Prep Time 5 mins
    Cook Time 10 mins
    Cooling Time 30 mins
    Total Time 45 mins
    Course Drinks
    Cuisine Global
    Servings 10 ounces
    Calories 77 kcal

    Equipment

    • 1 Medium saucepan (if using the stovetop)
    • 1 Heatproof bowl or measuring cup (if using the microwave)
    • 1 Spatula or spoon
    • 1 Glass bottle or other container for storage (at least 9 ounces capacity, preferably 10, to fit the full recipe)
    • 1 Funnel

    Ingredients

    • 1 cup water (8.3 ounces by weight/8 fluid ounces)
    • 1 cup sugar (7 ounces by weight)

    Instructions
     

    Stovetop Method

    • Add the water and sugar to your saucepan and place it on the stove over medium-high heat.
    • Stir the mixture a few times as it heats up. Bring it to a boil.
    • After it comes to a boil, lower the heat to a simmer and let it simmer for 3 minutes.
    • Remove the saucepan from the heat. Cover it with a lid and let the mixture cool to room temperature.
    • Once the syrup is at room temperature, pour it from the saucepan into your storage container. Use a funnel if necessary.
    • Store the syrup in the refrigerator for 2-4 weeks. Discard at any sign of cloudiness or mold growth.

    Microwave Method

    • Add the water and sugar to a heatproof, microwaveable container. Stir to combine.
    • Microwave the container for 30 seconds, then remove and stir the mixture.
    • Continue microwaving in 20 second intervals and then stirring until all of the sugar is dissolved.
    • Once the sugar is dissolved, allow the mixture to cool to room temperature. Then transfer it to your storage container, if it's different from what you're microwaving in.
    • Store the syrup in the refrigerator for 2-4 weeks. Discard at any sign of cloudiness or mold growth.

    Cold Method

    • Add the water and sugar to a sealable container or jar. Seal up the jar and shake it to mix.
    • Continue shaking for about 30 seconds, then rest and let the jar sit. Shake every now and then until all the sugar is dissolved.
    • If you want this process to go faster, you can use a blender instead of shaking the mixture.
    • Once all the sugar is dissolved, transfer the syrup to your storage container, if it's different from what you're mixing in.
    • Store the syrup in the refrigerator for 2-4 weeks. Discard at any sign of cloudiness or mold growth.

    Notes

    • See the section Should You Heat Simple Syrup? for more information on the pros and cons of the different methods.
    • If you are using the Cold Method, you might want to try to find superfine sugar (aka caster sugar) since it will dissolve faster in the water. You can make your own superfine sugar by running regular granulated sugar through the food processor.
    • With all methods, if the simple syrup is intended for cocktail use only, you can add an ounce of plain vodka to the syrup to make it last longer in the fridge. This will make the syrup have an ABV content of about 4%.

    Nutrition

    Serving: 1ounceCalories: 77kcalCarbohydrates: 20gFat: 1gSodium: 1mgPotassium: 1mgSugar: 20gCalcium: 1mgIron: 1mg
    Keyword simple syrup, sugar, syrup
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    Welcome to Limoncello Kitchen! I'm Kim, a food photographer with a love of cocktails, cold brew coffee and home baking. Here you'll find recipes, tips and tricks to make delicious cocktails at home!

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