What's not to love about sugar free jam? This low carb raspberry jam is so quick to make, packed with flavour and there's no need to cook!

I am so excited. Jams are going to make a comeback in this household! Thank you, little lovely chia seeds, you have taken all the work out of jam-making.
Seriously, it has been ages since we've had jam on or table. Possibly a year. Actually, maybe 2. I can vaguely remember my father bringing one of his creations, something delicious and tart involving blackberries and rosemary. After that jar was empty, we just did not replace it. We eat cold cuts, cheeses, smoked salmon and a LOT of peanut butter. In yoghurt and on waffles (check out my low carb waffles here) we have fresh fruit.
I remember the first time I made strawberry jam with my daughter, using a recipe that required 50% sugar. After I had measured a truckload of white granules and poured it into the pot, I just felt deflated. Even after the sugar had dissolved and the jam looked like jam and tasted like jam, I couldn't really enjoy it.

The "healthy" sugar free jams you can buy in the supermarket, normally sweetened with concentrated grape juice, deliver the same kind of sugar rush the regular varieties do. Don't be fooled by claims such as "no cane sugar" or "all natural" - they raise your blood sugar just the same. In terms of shop-bought jams, only the diabetic varieties do not play havoc with your body's insulin levels.
Friends. This raspberry jam is just the BEST. Let me explain:
- It is RAW. Meaning, no cooking required, no stirring, no time spent at the stove. All those lovely nutrients? Still hanging in there!
- RASPBERRIES. Soft, sweet and perfect jam making material. Can be mashed with a fork in less than a minute. No blending necessary, less washing up, more sofa time.
- VANILLA. Gives any sweet dish that special je ne sais quois. A taste so beautiful and refined you'd think the French must have invented it. Oh-la-la.
- CHIA. Little wonder seeds! Low in carbs, high in fibre, the world's richest plant source for omega-3 fatty acids and perfect for jams as they make things thicken and there's no need for pectin, which some people don't tolerate well.
- It is SUGAR FREE JAM! I used one tablespoon of erythritol, which made it just the right side of sweet.

We had it with yoghurt and nuts for breakfast, but I am thinking jammy coconut flour pancakes for the weekend and also planning a grain free Victoria sponge with a raw raspberry vanilla chia jam layer. Oh my, I am salivating just thinking about it.
This sugar free jam, friends. You CANNOT get a healthier one.
Obviously, this recipe can be adapted and made with any soft fruit such as ripe peaches, strawberries, blueberries or blackberries. Knock yourself out and let me know which one is your favourite!
More Easy Jams And Breakfast Spreads
- Sugar Free Blueberry Jam21 Minutes
- Sugar Free Strawberry Jam50 Minutes
- Blueberry Cream Cheese20 Minutes
- Sugar Free Orange Marmalade Recipe (Keto)2 Hours 40 Minutes
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Recipe

Easy No-Cook Low Carb Raspberry Jam (Sugar Free Recipe)
from Sugar Free LondonerNote: The servings slider only changes the first amount in each line and not any subsequent amounts. Please make your own calculations where necessary.
Ingredients
- 1 cup / 150g raspberries, fresh (if using frozen, give time to defrost)
- 3 tbsp / 24g chia seeds
- 1 teaspoon vanilla paste or extract
- ⅓ cup / 80 ml water
- 1 tsp / 4ml lemon juice
- 1 tablespoon powdered sweetener or more if needed
Instructions
- Mash the raspberries with a fork
- Combine all ingredients in a jar or bowl and stir
- Leave in the fridge overnight
Tina Bruchmann
How do you prep the jars to put the jam in? I've never canned jam before. Once canned can one store on the shelf in a cool place? Or does it still need to be stored in the fridge?
Katrin Nürnberger
You can immerse the jars in boiling water to prep them. Personally, I have never tried to properly can and store them at room temperature. I always make a smaller batch, which I keep in the fridge and start using it straight away.
Marie
Can you use strawberries instead Tod raspberries please. If so would you need to change the amount.
I’m looking for a non cook strawberry jam recipe.
Katrin Nürnberger
Yes, of course. You can puree the strawberries and use them instead. Cooking the strawberries as I do in my sugar free strawberry jam will intensify the taste though.
Leigh
I’d used this recipe for no cook raspberry jam last year and was throughly impressed. I grow my own raspberries so wanted different ways to use them up. This year I’ve been experimenting if you can freeze the jam. Happy days you can. I’ve used ice cube trays and once frozen popped into a freezer friendly box. The theory being that one raspberry jam cube would be enough for one serving (normal sized ice cube tray) came across one that was probably double the size and perfect serving size for your amazing keto scones. I’ve now come across your frozen soft scoop raspberry yogurt (think I’ll be using up last years frozen fruit for that).
Sue stanley
I started with raspberry. Then I used summer fruit now I’m about to try strawberry. The first two were brilliant. The only problem is the jar emptied too quickly. It’s great to have flavoured yogurt without the sugar issues. Thank you. My success with this and a lemon mug cake recipe of yours have encouraged me back to cooking
Julie
Hi! Thank you for this recipe. How long is it good in the fridge?
Katrin Nürnberger
The more lemon juice you add, the longer it will stay fresh. We normally eat this quite quickly, but I would say 1 week and if you seal it properly it should last longer.
Andrea
How does heating affect the nutrition of the chia seeds?
I think I want to try to can this so I can keep it on the shelf.
Katrin Nürnberger
I am not sure about the nutrition, but it’s possible to heat chia seeds - I often use it in baking, for example in my bakewell tart.
Janet
Hi, what amount of sugar free jello powder would you use to thicken the jam ? Thank you
Katrin Nürnberger
Hi Janet, I am not sure. I would check what amount of liquid it sets and take it from there.