Slimming World Syn Free Slow Cooker Red Onion Chutney

This red onion chutney has really cheered up my meals recently.  And did I tell you I hate dry food?  Usually if there’s sauce or gravy going, I’m all over it.  That’s probably the Northerness in me (which always need a capital N).

I love a good relish or chutney that I can spread on my bacon sarnies, eat with meat and sometimes a dollop in the centre of my soup.  And knowing this is syn free is truly a relaxing thought.


  • 1 kg red onions halved & thinly sliced
  • 2 garlic cloves minced
  • 8 tbsp granulated sweetener *4 syns if you ate the WHOLE lot
  • 200ml balsamic vinegar
  • 150ml apple cider vinegar
  • 150ml malt vinegar


  1. Place everything in the slow cooker and place a sheet of tin foil on top before placing on the slow cooker’s lid.
  2. Cook on high for 5-6 hours without stirring. If it’s too vinegary, cook it for longer until it’s toned down to your liking.
  3. Spoon in to sterilised jars while hot and screw the lid in to place and place in the fridge. I personally think mine might last 2-3 months from the vinegar’s acidity but will keep you posted.


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