Ham and Bean Soup

3 cups dry pinto beans
Ham bone
1 yellow onion, diced
1 bay leaf, dry
Salt and pepper to taste

Sort and rinse beans; soak them in a generous amount of water overnight. Next morning, rinse beans once more and add fresh hot water to cover several inches above the surface of the beans. This will be the broth, so add as much as desired. Add ham bone, onion, and bay leaf to the pan. Cover and cook on medium-high until beans are very tender—this could be anywhere from 2-8 hours, depending on how old the beans are. Remove from heat. Remove ham bone from the pan and slice any good meat on the bone to return to the soup. Add salt and pepper to taste. Remove bay leaf just before service. If a thicker soup is desired, puree with a stick blender.