Luscious Potato Leek Soup

Name: Luscious Potato Leek Soup
Ingredients: 4 large leeks, white and pale green parts, rinsed well and chopped; 4 large baking potatoes, peeled and chopped; 10 cups of water; 8 Rapunzel No Salt Vegetable Bouillon Cubes (see notes); 2½ teaspoons of kosher salt; ⅓ cup of dry white wine (optional); ¼-1/3 cup of half and half or heavy cream; 2 tablespoons potato starch mixed with two tablespoons of cold water to thicken the soup; A little grated fresh nutmeg (optional but good); A handful of chopped fresh dill; Couple of grinds of black pepper