Easy 4 Ingredient Raspberry Sauce
Berry season is my favorite time of year, and this raspberry sauce is the first thing I make once the market tables are stacked with red berries.
It comes together in about 15 minutes, and it turns an ordinary dessert into something that looks like a bakery special. I keep a jar in the fridge all summer for ice cream nights, lazy Sunday pancakes, and quick spoonfuls stirred into yogurt.

The best part is how little it asks of you. Four ingredients do all the work: fresh or frozen raspberries, granulated sugar, cornstarch, and water. There is no pectin, no long simmer, and no special equipment beyond a small saucepan and a fine mesh strainer. If you can stir a pot, you can make this sauce.
I started making it for lemon desserts, especially Lemon Sponge Pie, because the sweet and tart flavor cuts through that soft, custardy filling so well. Now it goes on almost everything in my kitchen.
A drizzle over a bowl of vanilla ice cream, a spoonful swirled into plain yogurt, or a ribbon of sauce across a slice of cheesecake makes dessert feel finished.

Here is where I reach for it most:
- Vanilla ice cream and frozen yogurt
- Plain or Greek yogurt, topped with a handful of granola
- Lemon desserts, including Lemon Sponge Pie
- Cheesecake, pound cake, and angel food cake
Make a double batch when berries are on sale. The sauce keeps beautifully, and you will be glad it is already in the fridge when a dessert needs a little something extra.
Jump to:
- Easy 4 Ingredient Raspberry Sauce
- Recipe Highlights
- Try This Recipe, You’ll Love It!
- Ingredients
- Need A Walk Through? Here’s How To Make It:
- Step 1: Cook the raspberries
- Step 2: Strain out the seeds
- Step 3: Thicken the sauce
- Step 4: Cool and serve
- Using Frozen Raspberries: Here’s What To Know
- Want To Store For Later? Here’s How:
- Ways To Use Raspberry Sauce
- More Raspberry Desserts You’ll Love
- Hello there, I’m Jere’
Recipe Highlights
Here is the short version, for anyone who wants the facts before they tie on an apron.
- Method: stove top, one small saucepan
- Skill level: easy and beginner friendly
- Time: about 15 minutes from start to finish
- Texture: smooth, velvety, and seedless
- Flavor: sweet and tart, with real raspberry taste
- Best for: desserts, breakfast treats, and baked goods
Because the seeds are strained out, the finished sauce is silky rather than seedy, which is exactly what you want when you drizzle it over something delicate.
Try This Recipe, You’ll Love It!
If you are still deciding whether to make this, here are three reasons I think you will love it.
- Frozen berries work beautifully, so you can make it in January and still get a fresh tasting sauce.
- It can be served warm or chilled, which means it fits whatever dessert is on the table right now.
- It uses four ingredients and is ready in under 15 minutes, so it is realistic even on a busy weeknight.
I have made this sauce for potlucks, birthday dinners, and quiet nights at home, and it has never once let me down. If you are feeding a crowd, double the batch and keep it in a jar in the fridge so you can spoon it over anything that needs a lift.
Ingredients
Everything here is a pantry or freezer staple for me. The amounts below make about 1 cup of sauce, which is 16 servings of 1 tablespoon each.
| Ingredient | Amount | What it does |
|---|---|---|
| Raspberries, fresh or frozen | 1 pint, about 12 ounces | The base of the sauce and the source of that bright berry flavor |
| Granulated sugar | 1/4 cup | Balances the natural tartness of the berries |
| Cornstarch | 1 teaspoon | Thickens the sauce to a drizzling consistency |
| Water | 1 teaspoon | Mixes with the cornstarch to make a smooth slurry |
A few notes from my kitchen. Fresh raspberries are my first choice when they are in season, but frozen berries work just as well. Blackberries can be swapped in for the raspberries if that is what you have on hand. If your berries taste especially tart, stir in a little extra sugar at the end and taste as you go.
Need A Walk Through? Here’s How To Make It:
The whole process is four simple steps, and the only tools you really need are a small saucepan and a fine mesh strainer. I like to set everything out on the counter first so I am not hunting for the cornstarch halfway through.
Step 1: Cook the raspberries
Add the raspberries and the sugar to a small saucepan and set it over medium heat. Stir occasionally and gently mash the berries with the back of a spoon to help them release their juices.

Cook for about 5 minutes, until the berries are soft, the sugar has melted, and the mixture looks juicy and syrupy. Frozen berries can go straight into the pan without thawing.

Step 2: Strain out the seeds
Set a fine mesh strainer over a bowl and pour the cooked mixture through it. Press hard with the back of a spoon to squeeze out as much juice as you can, working around the strainer in circles. Then discard the seeds left behind.

This step is what gives the sauce its velvety texture, so take your time and do not rush it.

Step 3: Thicken the sauce
Pour the strained juice back into the saucepan and warm it over medium low heat. In a small bowl, stir the cornstarch and water together until smooth to make a slurry.

Whisk the slurry into the warm juice and keep stirring until the sauce thickens slightly. It will look thin at first, then come together quickly, so stay with the pan.

Step 4: Cool and serve
Take the pan off the heat and pour the sauce into a small bowl to cool.

You can serve it warm right away, or chill it and serve it cold. Either way it will be thick, glossy, and ready to spoon over whatever is for dessert.
Using Frozen Raspberries: Here’s What To Know
Frozen raspberries are a gift for this recipe. They are often less expensive than fresh, they are available all year, and they go straight into the saucepan from the freezer with no thawing needed. As they cook, they break down quickly and give you the same rich raspberry flavor as fresh berries.
I keep a bag in the freezer for the middle of winter, when a warm sauce over ice cream feels like a small celebration. Just measure out about 12 ounces and start cooking. If your frozen berries carry a little extra ice, that moisture is fine, since the sauce thickens on the stove anyway.
Want To Store For Later? Here’s How:
This sauce stores well, which is one reason I always make extra.
- Refrigerator: keep it in a sealed container for up to 7 days.
- Freezer: store it in a freezer safe container for up to 6 months.
- To thaw: move it to the refrigerator overnight, then stir well before serving.
A jar with a tight fitting lid is my favorite container for the fridge, and small freezer bags or an ice cube tray work well for single servings.
If you freeze portions in a tray, pop the cubes out into a bag once they are solid, then thaw only what you need. Give the sauce a good stir after thawing, since it can separate a little as it sits.
Ways To Use Raspberry Sauce
Once you have a jar of this in the fridge, you will find reasons to use it. These are the pairings I come back to again and again.
- Cheesecake, for a sweet and tart finish
- Vanilla ice cream
- Yogurt, plain or vanilla
- Parfaits layered with granola
- Pancakes and waffles
- French toast
- Pound cake and angel food cake
- Lemon desserts of all kinds
- Brownies
- Oatmeal
It also works as a glaze for cakes and pastries. If you want a thicker glaze that clings instead of drizzling, simmer the finished sauce for a few extra minutes to cook off more liquid.
The result is closer to a raspberry reduction, though the cornstarch keeps it a little thicker than a plain fruit syrup. During berry season, I also like to make a simple 3 Ingredient Strawberry Jam when the strawberries are at their best.
More Raspberry Desserts You’ll Love
If you enjoy this sauce, these are the raspberry desserts I would send you to next.
- Chocolate Raspberry Tart: it looks fancy enough for a dinner party, but it is easier to put together than it looks. Chocolate and raspberries are a classic pairing.
- Raspberry Chiffon Cake: light, airy, and tender, the kind of cake that feels right after a big meal.
- Strawberry Raspberry Frozen Cheesecake: creamy and cold, with two berries working together. A wonderful make ahead dessert for warm weather gatherings.
Each of these is a good place to use a spoonful or two of the sauce you just made. A drizzle over the tart, a spoonful beside a slice of chiffon cake, or a ribbon across the frozen cheesecake all work nicely.
If you are bringing one of them to a potluck, pack the sauce separately and add it right before serving so nothing gets soggy on the drive.
Hello there, I’m Jere’
Hi, I am Jere’. I learned to cook on a farm in Indiana, where food was always about feeding people, and later trained at culinary school in California. These days I share sweet and savory family friendly recipes on One Hot Oven, and baking for friends and family is still my favorite way to spend an afternoon.
Recipes like this one are exactly my style. A short ingredient list, a simple method, and a result that makes people smile. I love a recipe that fits into a real life schedule, and this raspberry sauce does that. It is quick enough for a weeknight and special enough for a holiday table.
I hope this raspberry sauce becomes a regular in your kitchen the way it has in mine. Make a batch this week, keep it in the fridge, and see how many desserts it improves. And if you try it over Lemon Sponge Pie, you will understand why it is the first thing I make every berry season.





