Imagine a cream soup with the tanginess of the watercress ... Fill a large container with cold water and rinse the watercress bundle. Add baking soda or vinegar to your water to eliminate any ...

Add the watercress, and stir for three minutes. Remove from the heat and blend in a liquidiser. At this point, put the soup in a metal bowl and place it in a sink full of ice-cold water.

local watercress and storing it in a container with cold water, leaves above the water‚ or wrapped in a damp paper towel in an airtight bag” to keep it crisp and green, says Amador.