Sure Jell Low Sugar Blueberry Jam Recipe: Bright Fruit Flavor Without the Guilt

This low-sugar blueberry jam delivers all the bright, fruity flavor you love without the excess sweetness. Using Sure-Jell ensures a perfect set every time, so you can enjoy that classic spreadable texture with confidence.

The process is straightforward—fresh blueberries, a touch of sugar, and the right pectin ratio create a jam that’s vibrant and naturally sweet. No complicated techniques, just reliable results that taste like summer in a jar.

What you get is a versatile condiment that works on toast, yogurt, or even as a glaze for meats. The reduced sugar lets the blueberry’s true taste shine through, making it a guilt-free indulgence.

Store it properly, and this jam will keep for months, ready to brighten up any meal. Here’s how to make it right the first time.

Ingredients for Sure Jell Low Sugar Blueberry Jam

Six ingredients transform into a vibrant spread with perfect texture every time.

The blueberries are everything here. Farmers market or pick-your-own give the best flavor, but frozen works in a pinch (thaw and drain first). Look for plump, deep purple berries—avoid the sad, shriveled ones. The Sure-Jell is non-negotiable for that reliable set. Grab the pink box (low/no sugar needed) at any grocery store—Walmart or Kroger always stock it.

No Sure-Jell? Ball RealFruit Low or No-Sugar Needed Pectin works the same. Short on blueberries? Substitute blackberries or raspberries at the same ratio. The sugar can be reduced further, but don’t go below 1 cup or the jam won’t set properly. Vegan? Earth Balance or Miyoko’s butter for the foam skimming.

Once jarred and sealed, this keeps for up to 1 year unopened in a cool, dark place. After opening, use within 3 weeks and refrigerate. Freeze for 6 months if you’ve got extra—perfect for holiday gifting.

Step-by-Step Instructions for Low Sugar Blueberry Jam

Here’s the method I use to make bright, flavorful jam with less sugar.

Step 1: Prepare the Blueberries and Pectin Mixture

Place the 4 cups Fresh Blueberries in a large bowl and crush them with a potato masher until you have about 4 cups of crushed fruit. I like to leave some small chunks for texture, but you want mostly liquid and pulp. This step releases the natural pectin in the fruit for better set.

In a separate small bowl, mix the 1 package Sure-Jell Low or No Sugar Needed Pectin with the 0.25 cup Lemon Juice. The acid in the lemon juice helps activate the pectin, which is crucial for achieving the right consistency. Stir until the pectin is completely dissolved—this prevents lumps in your finished jam.

Step 2: Combine Ingredients and Bring to a Boil

Pour the crushed Fresh Blueberries into a large, heavy-bottomed pot. Add the 0.5 cup Water and stir to combine. Place the pot over high heat and bring the mixture to a full rolling boil, stirring constantly to prevent scorching.

Once boiling, stir in the pectin-lemon juice mixture. Then add all of the 1.25 cups Granulated Sugar at once. Stir continuously as you bring the mixture back to a full rolling boil. This is the moment that matters: the boil must be vigorous and cannot be stirred down. You’ll see large, foamy bubbles that cover the entire surface.

Step 3: Cook to the Perfect Set

Once the mixture reaches a full rolling boil, start your timer and let it boil for exactly 1 minute, stirring constantly. Watch for the mixture to thicken slightly—it won’t be fully set yet, but you’ll notice it starting to look more like jam and less like liquid. The color will also deepen to a rich, vibrant blueberry hue.

After 1 minute, remove the pot from heat. Stir in the 0.5 tsp Butter to reduce foam. This step helps eliminate the layer of bubbles that often forms on top during cooking. The butter also adds a subtle richness that balances the tartness of the fruit.

Step 4: Test, Jar, and Cool

To check the set, place a small spoonful of jam on a chilled plate and let it sit for 2 minutes. If it wrinkles slightly when you push it with your finger, it’s ready. If not, return the pot to boil for another 30-60 seconds and test again. I’ve found that this method works perfectly every time.

Ladle the hot jam into clean, sterilized jars, leaving ¼ inch of headspace at the top. Seal with lids and let the jars cool at room temperature. As the jam cools, you’ll hear the satisfying pop of the lids sealing. Once completely cool, store in the refrigerator for up to 3 weeks, or process in a water bath for longer storage.

Pro Cooking Tips for sure jell low sugar blueberry jam

Precision Matters

Measure your 1.25 cups Granulated Sugar precisely—low-sugar jams are sensitive to ratios. I use a kitchen scale for accuracy, as 250g is the sweet spot for this recipe. A slight overpour can prevent proper setting. 🌡️

Pectin Activation

Always mix the Sure-Jell Low or No Sugar Needed Pectin with 0.25 cup Lemon Juice first. This step ensures the pectin activates evenly, preventing clumps. Use fresh lemon juice—bottled can affect the acidity balance.

The Full Boil

Bring the mixture to a full rolling boil before adding sugar. The boil must be vigorous enough that stirring doesn’t reduce it. This is critical for activating the pectin and achieving the perfect gel.

Timing the Cook

Once the sugar is added, time the boil exactly—1 minute is non-negotiable. Use a timer and stir constantly; stopping early or late can ruin the set. I set a backup alarm just to be safe.

Foam Control

Stir in the 0.5 tsp Butter right after removing from heat. This reduces foam and gives a glossy finish. Vegan? Earth Balance works just as well. Skim any remaining foam with a spoon.

Testing the Set

Always do the plate test: spoon jam onto a chilled plate, wait 2 minutes, then push with your finger. If it wrinkles, it’s ready. If not, boil for another 30-60 seconds and retest. 💡

Frequently Asked Questions