Sugar Free Blueberry Jam Recipe – How to make easy low carb keto friendly 3 ingredient chia seed jam. This delicious blueberry chia jam can be made with fresh or frozen blueberries and naturally thickens without pectin. Perfect for spreading on low carb toast, spooning over yogurt or enjoying with keto pancakes and waffles.
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Sugar Free Blueberry Jam
This easy sugar free blueberry jam is made with just 3 simple ingredients and is naturally thickened with chia seeds. You can make this delicious homemade blueberry chia jam with either fresh or frozen blueberries, so it’s easy to enjoy all year round.
Unlike traditional jam, this recipe doesn’t require pectin or refined sugar. Simply cook the blueberries until soft and juicy, mash them to your preferred texture and stir through chia seeds and your sweetener of choice.
The chia seeds absorb the blueberry juices as the jam cools, creating a thick and spoonable consistency that’s perfect for spreading, spooning over yogurt or serving with your favourite low carb breakfasts.
If you’re following a low carb or keto diet, this sugar free blueberry jam is a simple way to enjoy the flavour of homemade jam without traditional added sugar.
Why You’ll Love This Sugar Free Blueberry Jam
- Only 3 ingredients – blueberries, chia seeds and your sweetener of choice.
- No pectin needed – chia seeds naturally help thicken the jam.
- Fresh or frozen blueberries work – use whichever you have available.
- Quick and easy to make – perfect when you want homemade jam without complicated preserving.
- Naturally thick and fruity – adjust the texture to make it chunky or smooth.
- Easy to customise – add lemon, lime or vanilla for extra flavour.
- Great for breakfast or dessert – enjoy it as a spread, topping or filling.
Can You Make Blueberry Jam With Frozen Blueberries?
Yes, frozen blueberries work perfectly in this recipe.
There’s no need to thaw them first. Simply add the frozen blueberries directly to a saucepan and cook over medium heat until they soften, release their juices and become easy to mash.
Using frozen blueberries is a great way to make homemade blueberry jam all year round. Fresh blueberries work just as well when they’re in season.
The Simple Ingredients You’ll Need For The Easy Recipe
You only need 3 simple ingredients to make this sugar free blueberry chia jam.
Blueberries
You can use either fresh or frozen blueberries. Frozen blueberries are particularly convenient because there’s no need to wait for blueberry season and you can make homemade jam whenever you like.
You don’t need to thaw frozen blueberries before using them. Simply add them directly to the saucepan and cook until soft and juicy.
Chia Seeds
Chia seeds naturally absorb liquid, helping the blueberry mixture thicken into a jam-like consistency without needing pectin.
You can use either black or white chia seeds.
Sweetener
Use your preferred sugar free sweetener and adjust the quantity to suit your own taste.
The amount you need may vary depending on how sweet your blueberries are and the type of sweetener you use, so it’s always best to start with less and add more after tasting.
Optional Extra Ingredients
Adding a little lemon juice, lime juice or vanilla extract can enhance the natural flavor of jam recipes, so feel free to add some into your healthier homemade jam.
Blueberry Jam Without Pectin
Traditional homemade jam often relies on pectin to help it set and thicken.
This easy blueberry chia jam doesn’t require any pectin because chia seeds naturally absorb liquid and create a thick, spoonable consistency.
Simply cook and mash the blueberries, stir through the chia seeds and allow the mixture to cool.
The chia seeds will continue absorbing liquid as the jam sits, helping it naturally thicken.
How To Make Sugar Free Blueberry Jam
Step 1: Cook the Blueberries
Place the fresh or frozen blueberries into a medium saucepan over medium heat.
Cook, stirring regularly, until the blueberries have softened and released plenty of their natural juices.
Step 2: Cook Until Soft and Juicy
Continue cooking until the blueberries are very soft and easy to mash with the back of a spoon or fork.
Frozen blueberries may release more liquid as they cook, which is completely normal.
Step 3: Mash the Blueberries
Remove the saucepan from the heat and mash the blueberries using a potato masher, fork or the back of a spoon.
For chunky blueberry jam, mash lightly and leave some berries whole.
For smoother jam, mash the blueberries more thoroughly.
Step 4: Stir Through the Chia Seeds and Sweetener
Add the chia seeds and your chosen sweetener to the warm blueberry mixture.
Stir well until everything is fully combined.
Taste the mixture and add additional sweetener if needed.
Step 5: Allow the Jam to Thicken
Leave the blueberry jam to cool.
As it cools, the chia seeds will absorb the blueberry juices and naturally thicken the mixture.
The jam will continue thickening as it sits, so don’t worry if it initially seems a little runny.
Step 6: Transfer to a Jar
Once the jam has cooled, spoon it into a clean jar or airtight container.
Store the blueberry chia jam in the fridge and enjoy within a week.
How To Make Blueberry Jam Thicker or Thinner
If your jam is too thin
Allow the jam to cool completely before deciding whether it needs more chia seeds. The chia seeds need time to absorb the blueberry juices and the jam will become thicker as it sits.
If the jam is still thinner than you’d like, stir through a small additional amount of chia seeds and allow it to sit again.
If your jam is too thick
Simply stir through a small splash of water until the jam reaches your preferred consistency.
Ways To Enjoy Sugar Free Blueberry Jam
This homemade blueberry chia jam is delicious in lots of different ways:
- Spread over low carb bread
- In a keto peanut butter and jelly sandwich
- Spooned over yogurt
- Mixed through cottage cheese
- As an ice cream topping
- With keto waffles
- With keto pancakes
- With keto bread
- To sandwich together keto breakfast cookies
- Layered into chia pudding
- Spoon over cheesecake or mousse
Sugar Free Blueberry Chia Jam Recipe
- 10.5oz-17.7oz/300g-500g Frozen or Fresh Blueberries
- 1/4 Cup of Stevia or your favorite sweetener
- 1/4 Cup of Chia Seeds
- Place the blueberries into a medium saucepan on the stove top over medium heat.
- Heat, stirring regularly, until the blueberries come to a full boil and have become soft and can easily be mashed with the back of a spoon or fork.
- Take the sauce pan off of the heat and mash the hot jam until smooth. I like to use a potato masher to mash the berries.
- Add the chia seeds and stevia, stir until well combined. Taste to be sure the jam is sweet enough, stirring through more stevia, if needed.
- Allow to cool and then pour the jam into a jar and store in the fridge.
- Use within a week and enjoy.
Sugar-Free Jam Recipe Video
Here’s the video where you can watch the sugar-free blueberry jam being prepared, step by step. Hit play below or click here to watch on YouTube.
Frequently Asked Questions
Can I make blueberry jam with frozen blueberries?
Yes. Frozen blueberries work perfectly and don’t need to be thawed first. Simply cook them directly from frozen until soft and juicy.
Can I use fresh blueberries?
Absolutely. Fresh blueberries work just as well as frozen blueberries.
Does chia seed jam really thicken?
Yes. Chia seeds absorb liquid and naturally thicken the blueberry mixture as it cools.
How long does chia jam take to thicken?
The jam will start thickening as it cools and will continue to thicken as the chia seeds absorb the blueberry juices.
Why is my blueberry jam too thin?
Allow it to cool completely first. If it’s still thinner than you’d like, stir through a small additional amount of chia seeds and allow it to sit again.
Why is my blueberry jam too thick?
Simply stir through a little water until it reaches your preferred consistency.
Do I need pectin to make blueberry jam?
No. This recipe uses chia seeds to naturally thicken the jam, so there is no need for pectin.
Can I make this jam without sugar?
Yes. This recipe uses a sugar free sweetener rather than refined sugar.
What sweetener should I use?
You can use your preferred granulated sugar-free sweetener. The quantity needed may vary depending on the brand and the sweetness of your blueberries, so adjust to taste.
How long does blueberry chia jam last?
Store the blueberry chia jam in a clean, airtight container in the refrigerator and use within 1 week. Always use a clean spoon when serving and discard the jam if you notice any mould, unusual smell, fermentation or other signs of spoilage.
Can I use other berries?
Yes. Raspberries, strawberries, blackberries or mixed berries can all be used to make chia seed jam.
Sugar Free Blueberry Jam
Sugar Free Blueberry Jam Recipe - How to make easy low carb keto friendly 3 ingredient chia seed jam. This delicious blueberry chia jam can be made with fresh or frozen blueberries and naturally thickens without pectin. Perfect for spreading on low carb toast, spooning over yogurt or enjoying with keto pancakes and waffles.
Ingredients
- 10.5oz-17.7oz/300g-500g Frozen or Fresh Blueberries
- 1/4 Cup of Stevia or your favorite sweetener
- 1/4 Cup of Chia Seeds
Instructions
- Place the blueberries into a medium saucepan on the stove top over medium heat.
- Heat, stirring regularly, until the blueberries come to a full boil and have become soft and can easily be mashed with the back of a spoon or fork.
- Take the sauce pan off of the heat and mash the hot jam until smooth. I like to use a potato masher to mash the berries.
- Add the chia seeds and stevia, stir until well combined. Taste to be sure the jam is sweet enough, stirring through more stevia, if needed.
- Allow to cool and then pour the jam into a jar and store in the fridge.
- Use within a week and enjoy.
Nutrition Information:
Yield:
8Amount Per Serving: Calories: 60
Recommended Products
You only need a few simple ingredients and kitchen tools to make this easy sugar free blueberry jam.
Chia Seeds – naturally thicken the blueberry juices, creating a delicious jam-like consistency without needing pectin. Keep a bag in your cupboard and you’ll be able to make all kinds of homemade chia jams, puddings and breakfast recipes.
Granulated Sugar-Free Sweetener – use your favourite granulated sugar-free sweetener to sweeten the blueberries to taste. Different sweeteners vary in sweetness, so start with a smaller amount and add more if needed.
Potato Masher – makes it easy to break down the softened blueberries while leaving some texture in the finished jam. You can mash the berries until completely smooth or leave some larger pieces for a chunkier blueberry jam.
Small Saucepan – ideal for gently heating the blueberries until soft and juicy.
Glass Storage Jars – once cooled, transfer your homemade blueberry chia jam to a clean glass jar or airtight container and store it in the fridge. Small glass jars are particularly useful for homemade jams, sauces, chia puddings and other meal-prep recipes.
More Easy Keto Diet Recipes
Updated in August 2026 with additional recipe tips, FAQs and improved instructions.
Disclaimer – this post is meant for informational post only and should not be construed as medical advice. Please consult with your health professional before making any dietary changes.
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