Put all the ingredients in the slow cooker and cook on low for 6-8 hours.
Once the beans are cooked,salt to taste then remove from heat and let stand for at least 30 minutes, so that the liquid thickens. These are even better when left to cool and then re-heated.
The Slimming Foodie has no official affiliation with, or endorsement from Slimming World. Slimming World’s website can be found at https://www.slimmingworld.co.uk. The syn values shown on my recipes are my personal estimation and have not been verified by Slimming World.