This is a quick and easy recipe for homemade Sugar Free Blueberry Jam. In about 20 minutes, you can make a batch of Keto blueberry jam with only 3g net carbs per tablespoon.
"BIG J, little j, what begins with J? Jerry Jordan’s jelly jar. J...j...J.." Dr. Seuss's ABC's
Hello jelly bellies. 👋
Today I'm going to share a Keto recipe that uses one of the tastiest weapons in the Keto cook's arsenal: blueberries. I'm going to show you how to make a quick and easy sugar-free blueberry jam.
It will be fruity, sticky and delicious. 🥰
Yep, this recipe is a total yum.
You only need five ingredients to make it, and one of those ingredients is water. Do you even need to count water as an ingredient? Unclear. Let's move on to some questions.
Are blueberries Keto? 💬
Yes, blueberries are one of the lucky few fruits you are allowed to eat on the Keto diet. You’ve got everything in the berry family, and not much else. Other than that, you can basically just have lemons and limes. But at least we can make lemonade out of them.
What are the carbs in blueberries? 💬
Each ½ cup serving of raw blueberries has 11 grams of carbohydrate and 2 grams of fiber. That means that it has a total net carb amount of 9 grams. (For more on why we only calculate net carbs, see my Keto Beginner’s Guide.). I’ve heard Keto vloggers refer to blueberries as “bluebs” but I don’t recommend that you do that.
It will sound stupid.
Annnnyhoo. Here’s what you’ll need to make Sugar Free Blueberry Jam:
- Fresh or frozen blueberries
- fresh lemon juice
- Swerve Granular or Swerve Confectioners
- Xanthan Gum
What is Swerve Sweetener? 🍚
Swerve is a sugar-free erythritol sweetener. It's got zero calories and zero net carbs, so it can be used in just about everything. You can find it in larger grocery stores or online on Amazon, and you shouldn't pay more than $7.50 for a bag. Unless you buy the big 48oz bag, which is $25.00. (They really don't cut you a break when you buy more, do they?). It comes in granulated, powdered, and brown sugar forms.
So it works for anything that requires sugar.
What is Xanthan Gum? 💬
Xanthan Gum is one of the best-kept secrets of Keto dieting. It is a white powder that thickens soups, sauces, gravies, and jams. It also acts as an emulsifier to bind moisture and prevent foods from separating. You can use it in Keto cookery to replace corn starch and white flour as thickening agents.
You only need to use a tiny amount to thicken any liquid.
- Mix together blueberries, water, sweetener and lemon juice in a sauce pan and bring to a boil.
- Lower heat and simmer for 15 minutes, stirring often. The mixture should thicken considerably.
- Taste for sweetness, and add more, in tablespoon measures, until it reaches the desired sweetness.
- Sprinkle Xanthan Gum over blueberry mixture and quickly whisk it in. Cook for 2 minutes more to thicken further.
- Cool to room temperature and then pour jam into a resealable container and store in the refrigerator for up to 3 months.
It only takes about 20 minutes. ⏲️
So soon you'll have a very tasty blueberry jam with only 2g net carbs per serving. You can eat it on so many things. I just had a lovely slice of Kiss My Keto Zero Carb Bread that I toasted and topped with the jam. You could also spread it on homemade Keto waffles or yeast bread. Or you could do like the Swedes, and eat it with meatballs.
So many ways to enjoy blueberry jam, so little time! 😍Print
Sugar Free Blueberry Jam
This is a quick and easy recipe for homemade low carb blueberry jam. In about 20 minutes, you can make a batch of Keto blueberry jam with only 3g net carbs per tablespoon.
- Prep Time: 5
- Cook Time: 17
- Total Time: 22 minutes
- Yield: 1 ¼ cups 1x
- Category: Condiment
- Method: Stovetop
- Cuisine: American
- Diet: Diabetic
- 4 cups (14oz) blueberries, fresh or frozen
- ¼ cup water
- 2 tablespoons fresh lemon juice (from 1 lemon)
- ¼-⅓ cup Swerve Granular or Swerve Confectioners
- ½ teaspoon Xanthan Gum
Step 1. In a medium sized sauce pan, mix together blueberries, water, ¼ cup sweetener and lemon juice. Bring to a boil over Medium heat. Lower heat and simmer for 15 minutes, stirring often. The mixture should thicken considerably. Taste for sweetness, and add more, in tablespoon measures, until it reaches the desired sweetness.
Step 2. Sprinkle Xanthan Gum over blueberry mixture and quickly whisk it in. Cook for 2 minutes more to thicken further.
Step 3. Cool to room temperature and then pour jam into a resealable container and store in the refrigerator for up to 3 months.
- Serving Size: 1 tablespoon
- Calories: 18
- Fat: 1
- Carbohydrates: 4
- Fiber: 1
- Protein: 1
Keywords: Low Carb Blueberry Jam, Keto Blueberry Jam, Sugar-Free Blueberry Jam
What if have no lemon juice, will it turn out ok?
Sure, it'll be fine.
Carole Leone says
Can you use tapioca starch instead of Xanthan Gum and still do a water bath to can?
I have never used tapioca starch, so I don't know. You can can this jam in a water bath though.
Tiffany Nelson says
Yay! Glad ya liked it.
Could strawberries be substituted for blueberries? I'd like to make both types of jam.
Any kind of berry will work.
Easy & delicious!!
Can this be done in a crockpot?
I guess so, but it just takes 17 minutes on the stove, so I don't see why you would want to mess with a crockpot.
Adam Longnecker says
This recipe worked perfectly without Swerve or Xanthan gum. I used a few squirts of liquid stevia for sweetener and Apple Pectin to thicken.
Can this recipe be canned in a water bath??
I haven’t tried canning this jam, but it should be fine. Just make sure to pour it into the jars right after you cook it.
Melanie Dickson says
I have 6 bags of frozen blueberries that I'm trying to have a use for and I'm missing jam since I went Keto 7 mths ago. Can this recipe use frozen blueberries?
Yes, frozen blueberries will work just fine. I’ll make a note on the recipe. Thanks for asking.
Thanks for posting this recipe! I've been using Nature's Hollow jams, but they are so expensive. I'm going to make a big batch of this jam and freeze it until I need it. Does it freeze ok?
Yes, it'll last up to one year in the freezer. When you are ready to thaw it out, just put in the the refrigerator to thaw and it'll be good for about 3 months.