This homemade raspberry sauce is the perfect way to take your desserts to the next level — it’s fresh, tangy-sweet, and ridiculously easy to make with just 6 simple ingredients.
Whether you’re drizzling it over a classic New York-style cheesecake, spooning it onto vanilla ice cream, or swirling it through Greek yogurt for breakfast, this quick raspberry sauce adds vibrant color and fruity flavor to everything it touches.

Do you want to know the fancy name for this easy sauce? It’s called Raspberry Coulis (pronounced koo-LEE) — the elegant French term for a smooth, thick fruit sauce. You’ll fall in love with its vibrant color and bold raspberry flavor that pairs beautifully with anything chocolate.
Making homemade raspberry sauce isn’t just easy — it’s downright addictive. I have a strong feeling this sugar-free raspberry coulis will find its way onto all your favorite desserts this summer.
It’s perfect for spooning over vanilla or chocolate ice cream, drizzling onto keto cheesecake, or pairing with a fudgy slice of almond flour brownies. The possibilities are endless for this fresh berry sauce, and yes — it’s heavenly over a dollop of unsweetened whipped cream, too.
Want to use frozen raspberries? No problem — this recipe works with fresh or frozen berries, making it the best raspberry sauce for cheesecake, pancakes, and more all year round.

If you get the chance to pick up fresh raspberries from a local farmer’s market, go for it — especially when they’re at their peak: ripe, juicy, and bursting with flavor.
I absolutely love eating fresh raspberries all summer long — not just because they’re a naturally low carb fruit, but because they taste incredible and are so versatile. They’re one of my go-to ingredients for everything from easy raspberry sauces to a quick, sugar-free chia seed jam I love to enjoy with toasted 90-second keto bread.
Ingredients You’ll Need
- Raspberries – Use fresh if they’re in season — sweet, juicy, and full of flavor. Frozen raspberries work great too and break down beautifully in the pan. No need to thaw. Just toss them in!
- Sweetener (to taste) – I use powdered erythritol or allulose to keep the sauce low carb and sugar-free. You can also use regular sugar, coconut sugar, or even honey if you prefer. Start with less and add more — some raspberries are naturally sweeter than others.
- Water (a few tablespoons) – Helps the berries break down smoothly as they cook, especially if you’re using frozen. Not too much — just enough to loosen everything up at the start.
- Lemon Juice – Freshly squeezed is best! It brightens the sauce and balances the sweetness. Adds that little zing that takes the sauce from good to “what is this magic?”
- Vanilla Extract (– Adds depth and a warm, sweet aroma. It won’t overpower — it just rounds out all the tartness beautifully.
- Butter – This gives the sauce a silky finish and adds a hint of richness. Totally optional, but highly recommended for that chef’s kiss texture.
- Salt (just a pinch) – You might not think it’s necessary, but it pulls all the flavors together. It’s the secret behind why the sauce tastes so balanced and vibrant.
How to Make Raspberry Sauce With Fresh or Frozen Berries
Did I mention how incredibly easy it is to make this homemade raspberry sauce — whether you’re using fresh or frozen berries? Because it is. No fancy equipment, no gelatin, and no fuss. Just a handful of pantry ingredients, one pot, and 15 minutes tops.
Here’s how to make the best raspberry sauce for cheesecake, ice cream, or pancakes right at home:
Step 1: Simmer the Berries
To start, add 2½ cups of raspberries to a medium saucepan. If raspberries are in season, fresh is always lovely — but frozen works just as well and breaks down beautifully.
Add a couple of tablespoons of water, your sweetener of choice (I usually go for powdered erythritol or allulose to keep it sugar-free), and a tablespoon of fresh lemon juice to brighten everything up.
Set the heat to medium and stir gently as the berries begin to release their juices and soften. Once the mixture starts to bubble, reduce the heat and let it simmer for a few minutes until it begins to thicken slightly.
Step 2: Add the Flavors That Make It Shine
Now comes the moment where the magic happens. Take the pan off the heat and stir in a splash of vanilla extract, a little pat of butter, and just a pinch of salt.
These are the little touches that make a big difference — the butter gives it a rich, smooth finish and the salt subtly balances all the sweet and tangy notes.
I always taste at this point and adjust — sometimes a bit more sweetener or lemon is needed, depending on how ripe your raspberries are. Everyone’s taste buds are different, and that’s the beauty of homemade: you make it just the way you like it.
Let your sauce cool for 15–20 minutes. It thickens naturally as it cools, becoming that perfectly glossy, spoonable sauce that looks beautiful drizzled over desserts or swirled into breakfast bowls.
If you’re after an extra-smooth, seedless raspberry sauce — technically called raspberry coulis — you can strain it through a fine mesh sieve.
Step 3: Let It Cool
I usually skip this step (I don’t mind the seeds), but if I’m serving it over something elegant like panna cotta or keto cheesecake, I’ll take the extra two minutes.

How To Store Easy Raspberry Coulis
Once your raspberry sauce has cooled completely, transfer it to a clean glass jar or airtight container. I like using a small mason jar — it looks nice in the fridge and makes it easy to scoop or pour.
You can store homemade raspberry coulis in the fridge for up to one week. It keeps beautifully and actually thickens slightly as it chills, making it even better for drizzling over desserts or stirring into yogurt.
If you’re planning ahead or made a big batch, raspberry sauce also freezes well. Just pour it into a freezer-safe container or ice cube tray (perfect for single servings), and freeze for up to 3 months. Let it thaw in the fridge overnight before using — give it a stir, and it’s as good as fresh.
Other Raspberry Recipes You Might Like

Easy Raspberry Sauce
Description
Ingredients
- 12 oz fresh or frozen raspberries about 2 1/2 cups
- 1/2 cup sweetener powdered erythritol, allulose, or your preferred option
- 1/3 cup water
- 1 tbsp lemon juice
- 2 tsp vanilla extract
- 1 tbsp butter
- Pinch of salt
Instructions
- In a medium saucepan over medium heat, add the raspberries, sweetener, water, and lemon juice. Stir constantly and bring to a gentle boil.
- Reduce the heat and let the mixture simmer for about 4–5 minutes, or until it thickens slightly and the berries start to break down.
- Remove from heat and stir in the vanilla extract, butter, and a pinch of salt. Stir until the butter is fully melted and incorporated.
- Let the raspberry sauce cool for at least 15 minutes before serving. It will continue to thicken as it cools.
- Transfer any leftover sauce to an airtight container and refrigerate. It will keep well for up to one week.
Notes
Nutrition information is shared to make meal planning easier. Values are estimates and can vary depending on the ingredients, brands, and serving sizes used. Learn more in my nutrition policy.


1. Can strawberries or blueberries be substituted in the low carb raspberry sauce recipe?
2. Can the sauce be canned with water bath canning processing?