Rinse the beans under running water. Place in a large saucepan to avoid spilling when boiling. Cover the beans with cold water and bring to boil.
Boil for 5 to 10 minutes
Cover the beans again in cold water. Bring to the boil. Reduce the temperature and simmer for one to two hours, until the beans are tender and done. Grain the water from the beans and make the quantity up to two-hundred ml with cold water, then return to the saucepan with cooked beans.
Mash one-hudred ml beans to thicken sauce.
Add the salt, liquid sweetner, vinegar, nutmeg, cinnamon and pepper to the cooked beans. Simmer for ten minutes, stirring occasionally. Serve hot or cold.
