Crockpot Ham and Potato Soup

Name: Crockpot Ham and Potato Soup
Prep time: 10 min
Cook time: 7 h
Total time: 7 h 10 min
Cuisine: American
Ingredients: 2 pounds potatoes (Yukon gold, or russets. I used 6 potatoes.); 1 cup onion (chopped, about 5 ounces); 2 stalks celery (chopped, about 1/2 cup); 2 large carrots (chopped, about 4 ounces); 4 cups chicken broth; 12 ounces ham (about 3 cups, cubed); ¼ cup AP flour; 1¼ cup half and half (substitute whole milk); ½ cup sour cream; 1 teaspoon salt; 1 teaspoon pepper; 1 tablespoon dried parsley; shredded cheese (optional for garnish)