Sure Jell Low Sugar Raspberry Jam Recipe: Bright and Bursting With Summer Flavor

This Sure Jell low-sugar raspberry jam captures summer's brightest flavors without sacrificing that perfect spreadable texture we all love. After years of testing—including one particularly sticky kitchen disaster with my first batch—I've perfected a method that balances sweetness, tartness, and just the right amount of jammy richness.

The secret lies in using ripe raspberries and a precise pectin ratio that lets the fruit's natural flavors shine while still creating that signature gel.

What makes this recipe work is the careful balance between fruit and sugar—using only 3 cups of raspberries (about 12 ounces) per box of Sure Jell means you get that vibrant red color and intense berry flavor without overpowering sweetness.

The low-sugar approach doesn't compromise the jam's ability to set properly, either; the pectin does all the heavy lifting while keeping calories in check. I've tested this recipe in both small batches (for gifts) and larger ones (for spreading on a whole loaf of bread), and it delivers every time.

By the end of the process, you'll have a jam that's bright red, glossy, and bursting with raspberry flavor—the kind that makes you want to slather it on toast, stir it into yogurt, or even drizzle it over cheese plates.

The texture is perfectly balanced: not too runny, not too stiff, with just enough give to make every spoonful satisfying. This is the jam I reach for when I want summer on my plate, even in the dead of winter.

One of the best parts? This recipe scales easily for gifting—just double the batch and package it in small jars for friends and neighbors. The flavor actually improves after a week in the fridge, so you'll find yourself making extra just to have it on hand.

Let's get started on creating jam that tastes like a summer morning in every bite.

Ingredients for sure jell low sugar raspberry jam

Eight simple ingredients transform into jam that tastes like summer in every bite.

The raspberries are everything here—buy the ripest ones you can find, preferably from a farmers market where they're picked that morning. Trader Joe's and Whole Foods often have great seasonal berries, but grocery store bins work too if they're plump and vibrant. That said, don't overlook frozen raspberries in a pinch (thaw and drain well)—they're perfect for this recipe. The Sure Jell box is non-negotiable; the low-sugar version ensures you get that signature gel without cloying sweetness. I always check the expiration date on pectin boxes—they're good for years, but freshness matters for best results.

Short on raspberries? Strawberries or blackberries work in a pinch, but adjust the sugar to taste—you might need an extra 0.25 cup. No vanilla? A pinch of cinnamon adds warmth. The butter might seem odd, but it's key for sealing those jars properly—don't skip it. For the lemon juice, fresh is best, but bottled works if it's real lemon juice (no artificial flavors). If you're making this for gifts, double the batch and use Ball or Kerr jars—they're the gold standard for canning. The sugar can be swapped for turbinado or brown sugar if you prefer a deeper flavor profile.

This jam keeps beautifully—1 year unopened in a cool, dark pantry and 3 months opened in the fridge. The flavor actually deepens over time, so make extra. For gifting, I like to add a small card with the date and a note about how it tastes best after a week. The butter-sealed jars? They're foolproof—just make sure to wipe the rims clean before sealing. If you're worried about spoilage, freeze extras in ice cube trays for single-serving portions.

Step-by-step instructions for Sure Jell low sugar raspberry jam

Here's how to make jam that's perfectly balanced—bright raspberry flavor with just the right sweetness.

Place the 3 cups of fresh raspberries in a large bowl and mash them thoroughly with a potato masher or fork. You want the berries completely broken down with minimal seeds remaining—this ensures a smooth jam texture. I like to press the raspberries against the sides of the bowl to extract every bit of juice.

Add the 2 tablespoons of freshly squeezed lemon juice and the 0.5 teaspoon of vanilla extract. Stir well to combine, then set the mixture aside. The lemon juice will help balance the tartness of the raspberries while preventing the jam from molding, and the vanilla adds a subtle depth of flavor that pairs beautifully with the bright berry taste.

In a separate mixing bowl, combine the 2.5 cups of granulated sugar, 0.5 cup of room temperature water, and the 1 box of Sure Jell Low Sugar Pectin. Stir this mixture vigorously for about 2 minutes until the sugar is completely dissolved and the pectin is evenly distributed. This step is crucial—undissolved sugar can create grainy spots in your finished jam.

Here's the thing—don't rush this part. The sugar should form a thick syrup that coats the back of a spoon. If you see any gritty bits, keep stirring until everything is smooth. The pectin needs to fully hydrate to create that perfect set when the jam cools.

Transfer the raspberry mixture to a large, heavy-bottomed saucepan. Add the sugar-water-pectin mixture and stir over medium-high heat until the mixture comes to a full, rolling boil that cannot be stirred down. This should take about 3-5 minutes of constant stirring.

Once boiling, reduce the heat to medium and continue boiling for exactly 1 minute. Watch carefully—you want vigorous bubbling but not so intense that it boils over. The jam is ready when it reaches a full gel stage. To test, place a small spoonful on a chilled plate and refrigerate for 1 minute. If it wrinkles when you push it with your finger, it's set.

Remove the pan from heat and stir in the 1 tablespoon of unsalted butter. This step might seem odd, but the butter adds richness and helps prevent the jam from forming a skin on top during storage. Stir well to incorporate completely, then skim off any foam that rises to the surface.

Again, test for doneness by placing a spoonful on a chilled plate. If it wrinkles when touched, your jam is perfect. If it's still too runny, return it to the heat and boil for another 30 seconds, then test again. Too thick? Don't worry—jam will soften slightly as it cools and sets completely in the jars.

Ladle the hot jam into clean, sterilized 4-ounce jars, filling them to within ¼ inch of the top. Use a small funnel if needed to prevent spills. Wipe the rims of the jars with a clean, damp cloth to ensure a perfect seal, then place lids on the jars and screw on the bands until fingertip tight.

Process the jars in a boiling water bath for 5 minutes to seal them properly. Remove the jars and let them cool completely on a wire rack. Once cooled, check that the lids have sealed by pressing down on the center of each lid—if it doesn't pop back up, your jam is properly sealed and ready for storage. This jam will keep for up to 1 year in a cool, dark place.

Storing and reheating this sure jell low sugar raspberry jam

Fridge Storage Tips

Once your jam is sealed in jars, store it in the refrigerator for up to 3 months if you plan to use it within that timeframe. I like to keep a jar on the door for easy access—just make sure it's fully sealed to prevent any moisture from getting in.

The flavor actually deepens as it sits, so if you make a batch, you'll likely want to finish it before the 3-month mark. 🥫

If you notice any mold or an off smell, toss it immediately—jam can spoil even when refrigerated. I once made a batch that sat too long and developed a weird yeasty smell, which was a good reminder to date my jars. Trust me, it's not worth risking that funky flavor!

Freezing for Long-Term

For longer storage, freeze your jam in ice cube trays or small jars. Portion it out into 1-tablespoon servings for easy use later—perfect for toast or yogurt. Label each container with the date and freeze for up to 12 months.

When ready to use, thaw in the fridge overnight or microwave for 10-15 seconds on low power.

I’ve found that freezing in ice cube trays works best for single servings. Just pop them into a jar or bag once frozen, and they’ll keep beautifully. The texture might soften slightly after freezing, but the flavor stays just as bright and delicious. 🧊

Reheating for Spreadability

If your jam thickens in the fridge, reheat it gently to restore its smooth, spreadable texture. Place the sealed jar in a pot of warm water and heat on low heat for 5-10 minutes, stirring occasionally.

Avoid high heat—it can break down the pectin and make the jam runny again. Stir well before serving to ensure even heating.

For a quick fix, microwave the jam in 10-second bursts on low power, stirring between each interval. This method works well for small batches, but be careful not to overheat—you want it warm and spreadable, not melted. 🔥

Gifting and Sharing

This jam makes an amazing gift, especially when packaged in Ball or Kerr jars with a pretty ribbon. I like to include a small card with the date and a note about how it tastes best after a week in the fridge.

The jam ships well if you use insulated packaging and cold packs—just make sure it’s fully sealed to prevent leaks.

For local gifting, drop off jars at neighbors’ doors with a handwritten note. I’ve done this a few times, and it’s always met with smiles and thanks. The key is to let the recipient know the jam will keep for months, so they can enjoy it over time. 🎁

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