This sugar free Blackberry Jam only takes four ingredients and a few minutes to make! It's perfect served with gluten free pancakes or biscuits!
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I'll be the first to admit, when I first started Keto, I thought making homemade jam was a thing of the past. So, imagine my surprise when I was taste testing this recipe and honestly couldn't tell a difference in traditional sugary jam and this Keto friendly version.
I happened to find a great sale on these huge, beautiful blackberries at my local grocery store. So, I stocked up and decided to create a jam that would pair perfectly with these homemade Keto Biscuits and these all time favorite gluten free Fluffy Pancakes!
Boy, did I nail it! You just have to try this sugar free blackberry jam recipe to believe how sweet and delicious it is. And just look at the rich and vibrant color!
What's in Keto Blackberry Jam
- Blackberries
- Allulose, confectioners
- Lemon juice
- Water
- Xanthan gum
*Exact measurements are listed in the recipe card below.
How to Make Keto Blackberry Jam
Add the blackberries, allulose, lemon juice and water to a sauce pan and cook over medium/low heat for 8-10 minutes.
The berries will start to break down and the sauce will thicken some as it begins to cook.
Once the berries have started to plump up and break apart, use a masher or fork to mash up the blackberries.
Sprinkle the xanthan gum over the top while stirring. Easy does it! It only takes a little.
Continue cooking for another 2 minutes, give it a good whisk then remove from the stove and allow it to cool. Remember that it will thicken as it cools so resist the temptation to add more xanthan gum.
Allow to cool before serving. If you prefer a smooth sauce, you can blend it in a food processor, until you get your desired consistency.
Store in an airtight container in the fridge for 5-7 days.
Is Sugar Free Jam Keto Friendly?
The recipe for this low carb jam is definitely Keto friendly. It replaces sugar with a sugar substitutes and uses only a little lemon juice and xanthan gum for thickener.
What are the Carbs in Blackberries?
Blackberries have next to the lowest net carbs than any other berry, right next to raspberries. With only 3.5 net carbs per ½ cup serving, blackberries are the perfect low carb snack or ingredient for jams and sauces.
Tips for the Best Keto Jam
This low carb blackberry jam couldn't be easier to make. I mean, who doesn't love a 10 minute jam recipe, right? And while it's super simple, here are a few suggestions to ensure it turns out perfect everytime:
How to Choose the Right Blackberries for Sugar Free Jam
While there is nothing like picking your own fresh berries, for most of us, blackberry season wraps up around the end of August. The great news is there are really great brands, like Driscolls, that supply quality berries throughout the year.
To get the best blackberries for jam or sauce, you'll want to look at the color and firmness of the berries. Blackberries should be dark purple/black and look quiet plump. If they're light purple or have some red spots throughout, they are going to be hard and fairly tart which is not what you want in jam.
What's the Best Sweetener for Sugar Free Blackberry Jam?
There are two types of sugar substitutes I prefer in most all of my Keto recipes. First, the sweetener can not have a weird after taste. Second, it must behave the same way when cooking as regular sugar.
Swerve brand sweetener has a wonderful line of sugar substitutes I use quite often recipes. However, I've recently found that Allulose Confectioners has no cooling effect and truly mimics the way powdered sugar taste. It may not be available in some of your grocery stores, but you can get it on Amazon and some of the bigger named groceries stores. I think you'll be pleasantly surprised if you give it a try.
If you have Swerve on hand, then by all means use it, but for this recipe I recommended giving Allulose a try if you can.
Wholesome Yum's Besti Powdered Allulose is my absolute favorite allulose to use! It has perfect texture and far exceeds anything else I've ever tried. Use code: KCC10 to save 10%.
Can I Make Low Carb Blackberry Jam in Advance? Can I Freeze Keto Blackberry Jam?
You certainly can make this in advance. This is a rather small batch recipe. The thought behind that is since it's so incredibly easy to make, you can have fresh jam in minutes. But, let's face it, we can't be making homemade jam before work in the mornings. This sugar free jam will keep for up to 5-7 days, stored in a mason jar or air tight container.
Once you try this low carb jam recipe, you may very well decide to make several batches in advance. If you do, you can freeze it and have some on hand anytime you want it.
Just take the cooled jam and put it in a freezer safe bag, make sure you squeeze out any remaining air, and place in the freezer for up to a few months.
How Do I Thicken Blackberry Keto Jam?
Xanthan gum thickens recipes and also prevents ingredients from separating. A word of caution, this stuff goes a long way so only use the amount listed in the recipe card below because as the jam begins to cool the xanthan gum jumps into action and firms it right up to the perfect consistency.
What Keto Recipes Can I Use with Blackberry Jam?
Other than biscuits and pancakes or waffles, you can use this sugar free jam as a base for a sweet and tangy vinaigrette salad dressing, or BBQ sauce.
You can add a little water to the jam and thin it out to make a fantastic Keto blackberry sauce for sugar free ice cream.
More Keto Sauce Recipes
- Raspberry Sauce
- Strawberry Sauce
- Salted Caramel Sauce
- Sugar-Free Nutella
- 5 Minute Lemon Curd
- Blueberry Sauce
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Keto Blackberry Jam
Ingredients
- 12 ounces fresh blackberries
- ⅓ cup allulose, confectioners
- 2 tablespoons fresh lemon juice
- 2 tablespoons water
- ¼ teaspoon Xanthan gum
Instructions
- Sprinkle the xanthan gum over the top and whisk. Continue cooking for another 2 minutes, then remove from the stove and allow it to cool. Remember that it will thicken as it cools.
- Allow to cool before serving. If you prefer a smooth sauce, you can blend it in a food processor, until you get your desired consistency. Store in an airtight jar in the fridge for 5-7 days or freeze.
Recipe Notes
*Make sure to scroll up and read the post for substitutions, additions and helpful tips for making this recipe.
*Nutritional data is provided as a courtesy and is accurate to the best of my knowledge. You can verify it using the nutrition calculator of your choice. All data is based on net carbs, without sugar alcohol: Swerve, Erythritol, Monk Fruit or Allulose.
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Rate this Recipe
Patricia Surratt
could you use unflavored beef gelatin instead of xanthum gum?
Keto Cooking Christian
Yes, that would work too!
Margaret
If I use the food processor, I still need to cook It right? Thanks
Keto Cooking Christian
Yes, you will still need to cook it.
Kevin
WOW. Just wow, so delicious, and easy to make. I used fresh blackberries from my daughters garden. this turn out perfectly. I strained it. also thank you for the scripture.
Keto Cooking Christian
You are so welcome. I love fresh blackberries!
Jennifer
Just made this for my husband with fresh blackberries that we have an abundance of in our yard right now and he said it was perfect! Now, gotta make a whole bunch more batches to freeze. Thank you for this recipe. Followed it exactly!
Keto Cooking Christian
That's awesome to hear! I wish I had fresh blackberries in my yard. This jam freezes well if you'd like to make extra for later.
Linda Hartman
Delicious and easy to make!!
Keto Cooking Christian
I'm so glad you liked it!
Rosona
Can this be canned?
Keto Cooking Christian
I am not really sure. Because this is a small-batch recipe, I've never tried canning it.
Kim
I just made your jam I'm looking forward to make strawberry and blueberry and thank you for Bible verses
Keto Cooking Christian
You're so welcome and I'm glad you're enjoying the recipes and scripture!
Teresa Tudor
Could you use monk fruit/ allulose mix?
Keto Cooking Christian
Yes, you sure can!
Dee
Can this be made with confectioners xylitol instead of allulose??
Keto Cooking Christian
I have not tried that substitution, but I am sure it would work fine.
Heather
This recipe worked great for us! I used 12 6 ounce containers and scaled all the measurements up. I did not have enough powdered swerve to complete the recipe, so I used Steviva granular (from Azure Standard). Everyone in my family loves it, so my batch probably won't last all winter like I had planned. Thank you for all of your great recipes.
Keto Cooking Christian
That is awesome! I am so glad you enjoyed it. You can use it in so many recipes. This Keto Blackberry Coffee Cake is really tasty. https://ketocookingchristian.com/keto-blackberry-coffee-cake-gluten-free/
Tanya P.
Can you use liquid allulose for this recipe instead of powdered? Thanks.
Keto Cooking Christian
I have never tried liquid allulose in this recipe, so I am hesitant to say one way or the other.
Sybille Seidel
Can this be made seedless and can I also make the raspberry jam seedless and what do I need to do this and will I need to add anything to the recipe
Keto Cooking Christian
Yes, you can strain the seeds with a fine mesh strainer.
Carolyn caddenhead
My didn’t thicken
Keto Cooking Christian
I am sorry to hear that. Between the lemon juice and xanthan gum, it should have been a very nice and thick jam like consistency. I have made it many many times and it always thickens perfectly.
Jon Graifer
you may have had the heat too low or not added quite enough xantham gum. I've also gotten better results with using Guar Gum for liquid applications vs Xantham for things like bread and pastries.
Isabel
Does 16 servings = 1 cup?
Keto Cooking Christian
Yes, each serving is 1 tablespoon.
Phylluslattimer
What if all you can find is frozen berries?
Keto Cooking Christian
You can use them, but be sure they are thawed and all the liquid is drained well.