Slow Cooker White Bean & Ham Soup

dried Great Northern or navy beans, picked over

large smoked ham bone, ham hock, or ham shank

(approximately 6 ounces) shredded, julienned, or diced carrots

medium stalk celery, sliced

garlic, minced

low-sodium chicken broth or stock

bay leaves

dried parsley

celery salt

dry mustard powder

Freshly ground black pepper

Several dashes of hot pepper sauce (such as Tabasco)

to 2 cups diced ham, optional