How to Make Low-Sugar Blackberry Jam

How to Make Low-Sugar Blackberry Jam

Blackberry Jam Recipe (Low Sugar)


There’s something truly satisfying about making your own jam from scratch. And when it comes to blackberry jam, the delicious and tangy taste is just unbeatable. Not only does homemade jam offer a burst of flavor, but it’s also a great way to preserve the bounty of the summer season. In this article, I’ll be sharing a simple and low-sugar blackberry jam recipe that you can easily make at home. So grab your apron and let’s get started!


To make this flavorful blackberry jam, you’ll need the following ingredients:

– 4 cups of fresh or frozen blackberries
– 1 cup of granulated sugar
– 2 tablespoons of lemon juice
– 1 teaspoon of lemon zest (optional, for an extra citrusy kick)


Now that we have our ingredients ready, let’s dive into the step-by-step process of making homemade blackberry jam.

1. Prepare the blackberries: Rinse the blackberries under cold water and remove any stems or leaves. If you’re using frozen blackberries, make sure to thaw them before proceeding to the next step.

2. Cook the blackberries: In a large saucepan, add the blackberries along with the sugar, lemon juice, and lemon zest (if using). Mix well to combine all the ingredients. Place the saucepan over medium heat and bring the mixture to a simmer. Stir occasionally to prevent the mixture from sticking to the bottom of the pan.

3. Mash the blackberries: As the blackberries simmer, they will start to break down naturally. To speed up the process, you can use a potato masher or the back of a spoon to gently mash the berries. Continue simmering and mashing until the mixture thickens and reaches the desired consistency. This usually takes around 20-30 minutes.

4. Test the jam: To check if the jam is ready, you can perform the spoon test. Take a small amount of the hot jam and place it on a cold plate. Allow it to cool for a few seconds, then run your finger through the jam. If it wrinkles and holds its shape, it’s ready. If not, continue cooking for a few more minutes and test again.

5. Store the jam: Once the jam reaches the desired consistency, remove the saucepan from the heat. Allow it to cool for a few minutes before transferring it into clean and sterilized glass jars. Seal the jars tightly and let them cool completely before storing them in the refrigerator or pantry.

My 2 Cents

– To reduce the sugar content even further, you can use alternative sweeteners such as honey or stevia. Keep in mind that the taste and texture of the jam might slightly differ.
– If you prefer a smoother texture, you can puree the blackberry mixture in a blender or use an immersion blender before cooking.
– Don’t throw away the lemon zest! You can freeze it in an ice cube tray with some water and use it to add a zingy flavor to your drinks or recipes later on.
– Experiment with different flavor variations by adding spices like cinnamon or nutmeg, or even a splash of vanilla extract.
– Homemade blackberry jam makes a delightful gift, so consider making a larger batch and sharing it with your friends and loved ones. Just make sure to properly label the jars with the date of preparation and storage instructions.

Now that you have this delicious low-sugar blackberry jam recipe in your arsenal, you can enjoy the taste of summer all year round. Whether you spread it on toast, swirl it into yogurt, or use it as a filling for pastries, this homemade jam will elevate any meal or snack. So get creative in the kitchen and let the sweet aroma of blackberry jam fill your home!