Watercress: Don't throw out those stems and flowers

I called David to ask about the yellow leaves on the bottom of the watercress stems.  He said they're yellow because the top leaves block the sunlight.  You can remove the yellow leaves, but keep ALL of the stems.  They're actually the tastiest part - and very nutritious.  Most restaurants also ask for the watercress flowers because it provides a pretty addition to a salad.  So make sure you use those tasty bites too : )