Cream of Potato Soup

3 cups chicken broth
6 cubed medium potatoes
4 Diced stalks celery
4 Diced carrots
1 Diced onion
2 cups heavy cream
1 cup milk
4 tablespoons butter
1/2 cup cornstarch
1 cup cheddar cheese (optional)
1. Pour chicken broth in pot. Add cubed potatoes and bring to a boil.
2. In a sauce pan melt butter and add diced onion, celery and carrots. Pan fry until soft.
3. When potatoes are done add the celery, carrot and onion mixture with butter to broth. Reduce heat to medium and add milk and heavy cream. Whisk well. Be careful not to have soup at a heavy boil or cream will curdle.
Add enough cream to make soup look creamy throughout. Add Cheese. Mix corn starch with very cold water and add to soup. Continue medium boil until soup thickens. Remove from heat and enjoy. Soup will thicken when it gets cold.
*Can add milk or water to thin out.