Delicious Ham and Potato Soup

INGREDIENTS
3 1/2 cups peeled and diced potatoes
1/2 cup diced celery
1/2 cup finely chopped onion
½ cup carrots chopped
1 cup corn
3/4 cup diced cooked ham
3 1/4 cups water
2 chicken bouillon cubes
1 teaspoon ground white or black pepper, or to taste
4 tablespoons butter
5 tablespoons all-purpose flour
2 cups milk
1 cup cheese

DIRECTIONS
1 Combine the potatoes, celery, onion, carrots, ham and water in a stockpot. Bring to a boil, then cook over medium heat until potatoes are tender, about 10 to 15 minutes. Stir in the chicken bouillon, salt and pepper.
2 In a separate saucepan, melt butter over medium-low heat. Whisk in flour with a fork, and cook, stirring constantly until thick, about 1 minute. Slowly stir in milk as not to allow lumps to form until all of the milk has been added. Continue stirring over medium-low heat until thick, 4 to 5 minutes.
3 Stir the milk mixture into the stockpot, and cook soup until heated through. Top with cheese. Serve immediately