Here’s an idea for surplus runner beans, haven’t tried it yet but has been recommended.
2lb Beans (After destringing !!)
1 1/2 lbs onions (chopped up)
2 tablespoons of cornflour
1 1/2 pints of vinegar
1 1/2 tablespoons of turmeric
2lb Demerara Sugar
1 teaspoon dry mustard.
Method – Cook the beans. Boil onions in 1/2pt vinegar until tender. Add the rest of the
vinegar and beans. Boil for fifteen minutes more and then add the rest of the ingredients and boil for further ten minutes. Cool pot up and seal.