Finely dice speck and onion. Brown in pan. You must do this to achieve a smokey flavour. Don't skip the browning. Add all ingredients to slow cooker. Cook for 4 hrs on high ideally. Add chopped parsley before serving and stir through.
Many other recipes call for maple syrup or treacle as well as brown sugar but I think this is sweet enough.
Freezer suitable.
Good for breakfast, lunch and dinner.
Could use rehydrated dried beans in substitution for the canned ones. This would be a lot cheaper.
Could make vegetarian by substituting a little liquid smoke for the speck.