3 chilled soup vichyssoise Recipes

sliced leeks, white part only, diced old potatoes or 4 cups baking potatoes, recommended, water, salt , to taste, sour cream or 1/2 cup heavy cream or 1/2 cup creme fraiche, optional, fresh chives or 1 tbsp parsley, minced

leeks, white part only, well cleaned, chopped, green onions, white part only, chopped , with green tops reserved, chicken stock, yukon gold potato, peeled and diced, unsalted butter, kosher salt, white pepper