Cuban Black Bean Soup

Ingredients

3,800 ml water
400 gr black beans
2 garlic
1 gr oregano
2 onions
16 ml prepared mustard
1 handful
1 handful celery

Instructions

Soak the beans in 2 litre of water overnight, then drain. Add the fresh water to the beans in a large pot. Simmer for 5 hours. Add the remaining ingredients. Simmer for another 2 hours. Watch that you don't burn this great soup. Adapted from Jeff Smith, "The Frugal Gourmet"