Ham Potato Chowder

Ham Potato Chowder
3 1/2 cups diced potatoes
2 stalks celery, diced
1 small onion, diced
3 1/4 cup water
2 Tbsp dry chicken bouillon
1/2 tsp pepper
3/4 cup diced ham
5 Tbsp butter
5 Tbsp flour
2 cups milk
1 cup grated cheddar cheese
Boil vegetables in water and bouillon till tender, about 10 minutes. Add pepper and ham. In a small saucepan, melt the butter over medium heat. Whisk in the flour. Slowly whisk in the milk and keep whisking till smooth. Cook over medium heat till bubbly, stirring constantly. Boil for at least one minute to get rid of the flour taste. Pour into the vegetable mixture and stir till smooth. Add salt to taste. Serve with cheddar cheese.