- 1 cup butter
 - 2 leeks, sliced
 - salt and pepper to taste
 - 1 quart chicken broth
 - 1 tablespoon cornstarch
 - 4 cups Yukon Gold potatoes, peeled and diced
 - 2 cups heavy cream
 
- In a large pot over medium heat, melt butter. Cook leeks in butter with salt and pepper until tender, stirring frequently, about 15 minutes.
 - Stir cornstarch into broth and pour broth into pot. Add the potatoes and bring to a boil. Season with salt and pepper. Pour in the cream, reduce heat and simmer at least 30 minutes, until potatoes are tender. Season with salt and pepper before serving.