A jar of raspberry simple syrup in the refrigerator changes how you make drinks. Iced coffee, lemonade, sparkling water, cocktails — a spoonful of this and whatever you’re drinking immediately tastes like something from a coffee shop or cocktail bar. Made from real raspberries, it has a depth and brightness that bottled syrup doesn’t come close to.
It takes about 15 minutes and a handful of ingredients. The hardest part is waiting for it to cool before you use it.
Fresh vs. Frozen Raspberries
Both work and produce nearly identical results. Frozen raspberries are actually ideal here — they’re processed at peak ripeness, which means the flavor is locked in year-round. They also break down faster than fresh, which shortens the simmer time slightly. Fresh raspberries in season produce a slightly brighter, more fragrant syrup that’s worth using when they’re available.
Either way, you’re getting the syrup from actual fruit rather than extract, which is the difference between a syrup that tastes like raspberry and one that tastes like raspberry candy.
The Lemon Juice
Optional in the recipe but worth adding. Lemon juice brightens the berry flavor and adds a slight tartness that keeps the syrup from reading as purely sweet. It also helps the color stay vivid — the acidity preserves the deep red rather than letting it dull to brown over days in the refrigerator. Half a teaspoon is all you need.
The Vanilla Extract
Also optional, also worth it. A teaspoon of vanilla in a fruit syrup sounds wrong but it adds a warmth and roundness that makes the syrup taste more complex. It doesn’t make the syrup taste like vanilla — it makes the raspberry taste more like itself. Add it off heat after straining.
Straining
Push the cooked berries through a fine mesh strainer using the back of a spoon. Press firmly to get all the juice out — the pulp you leave behind is where a lot of the flavor is hiding. Discard the seeds and pulp. The finished syrup should be clear enough to see through, deep red, and glossy.
If you want a thicker syrup with more body, skip the strainer and blend the cooked mixture instead. The resulting syrup is more opaque and has a slightly jammy consistency that works especially well in smoothies and on desserts.
How to Use It
Stir into iced coffee or cold brew for a raspberry latte. Add to lemonade for a raspberry lemonade that actually tastes like raspberries. Mix into sparkling water for a flavored soda. Use as a drizzle over cheesecake, pancakes, or ice cream. Stir into cocktails — gin, vodka, and champagne all work.
For the cold brew application specifically, a tablespoon of this in a glass of Cold Brew Coffee Concentrate — thisoldbaker.com/cold-brew-coffee-concentrate-easy-overnight-recipe over ice is one of the best summer drinks you can make at home.
Storage
Sealed jar in the refrigerator for up to two weeks. The color may deepen slightly over time — that’s normal and doesn’t affect flavor. Freeze in an ice cube tray for longer storage; pop a cube into drinks directly from frozen.
If you’re building out your simple syrup collection, my Homemade Simple Syrups roundup — thisoldbaker.com/homemade-simple-syrups has all six flavors in one place.
Frequently Asked Questions
Can I use frozen raspberries for simple syrup?
Yes — frozen raspberries work as well as fresh and are ideal for year-round syrup making since they’re processed at peak ripeness. They break down slightly faster than fresh raspberries during simmering, which can shorten the cook time by a few minutes. The flavor and color of the finished syrup is nearly identical to a fresh-raspberry version.
How long does raspberry simple syrup last?
Up to two weeks in a sealed jar in the refrigerator. The color may deepen slightly over time but the flavor stays consistent. For longer storage, freeze in an ice cube tray and transfer to a bag — frozen syrup cubes keep for up to three months and can be added directly to drinks from frozen.
Why add lemon juice to raspberry syrup?
Lemon juice brightens the raspberry flavor, adds a slight tartness that balances the sweetness, and helps preserve the deep red color by preventing oxidation. Without it the syrup is still good but slightly flatter in flavor and may dull to a brownish-red in the refrigerator over several days.
What drinks can I make with raspberry simple syrup?
Raspberry iced coffee or cold brew latte, raspberry lemonade, raspberry sparkling water, raspberry cocktails (gin, vodka, and champagne all work well), and raspberry tea. It also works as a dessert drizzle over cheesecake, ice cream, pancakes, and waffles.
Do I need to strain raspberry simple syrup?
a thicker, more jammy syrup with more body, blend the mixture instead of straining. The blended version is more opaque and works better for smoothies and dessert drizzling. Both are correct depending on the application.
Raspberry Simple Syrup
Ingredients
- 1 cup water
- 1 cup granulated sugar
- 2 cups fresh or frozen raspberries
- 1 teaspoon vanilla extract optional
- 1 teaspoon lemon juice optional, brightens the berry flavor
Instructions
- In a medium saucepan, combine the water, sugar, and raspberries.
- Bring to a gentle simmer over medium heat, stirring until the sugar has dissolved.
- Reduce the heat to low and simmer for 10–15 minutes, gently mashing the raspberries with the back of a spoon as they soften.
- Remove from the heat and let the syrup steep for 10 minutes.
- Strain through a fine-mesh sieve, pressing gently to extract the syrup. Avoid pressing too hard if you want a clearer syrup.
- Stir in the vanilla and lemon juice, if using.
- Allow the syrup to cool completely before pouring it into a clean pint mason jar. Refrigerate.
- Storage
- Refrigerate for up to 2 weeks.
Notes
Delicious Ways to Use It
Italian sodas
Lemonade
Sparkling water
Iced tea
Cold brew coffee
Homemade raspberry lemonade
Cocktails and mocktails
Pancakes and waffles
Cheesecake and ice cream
Yogurt and oatmeal
This Old Baker Tip Fresh or frozen raspberries both work — frozen is ideal year-round. Add lemon juice to brighten flavor and preserve color. Add vanilla off heat after straining. Press berries firmly through strainer to extract all juice. Keeps 2 weeks refrigerated; freeze in ice cube trays for longer storage.
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