Risotto is the perfect dinner party food, since it's always delicious and most people never make it themselves, preferring to order it at their favorite Italian restaurants instead. This version is enhanced with watercress, which adds pepper flavors (similar to arugula, which could be substituted if desired) and a lovely verdant color. It's finished in the usual way: with butter and grated cheese (as much as you like). Serve with grilled salmon.