Simmer

Walnut oil can be found at most gourmet markets. Because it is more delicate than other oils, walnut oil should be refrigerated after it has been opened to keep it from going rancid.

Some varieties of noodles suggest soaking them in boiling water instead of cooking them; check your package instructions before preparing them.

For a velvety smooth texture, pass the soup through a fine strainer after the mixture has been processed and before adding the cream.

You can substitute eight small artichokes for the baby artichokes: Prepare them as directed below, removing all but the tender inner leaves and scooping out the choke. Adjust the cooking time accordingly. Fan leaves of artichoke hearts, and place one in each bowl.

This traditional Scottish soup is made with chicken stock, leeks, and potatoes. If you make this soup ahead, you may need to add a bit of water or stock when reheating it.