Chilled Watercress & Cucumber Soup

Ingredients

• 2 bunches watercress, thick stems removed and coarsely chopped
• 1 large European cucumber, peeled and coarsely chopped
• 1 scallion, chopped
• 1 very ripe Comice or Anjou pear, peeled, cored, and chopped
• 1 quart organic low-salt chicken (or vegetable) broth
• 2 Tbs. snipped fresh dill
• 2 Tbs. Meyer lemon juice
• 1 heaping tsp. microplaned Meyer lemon zest
• 1 tsp. sea salt (more to taste)
• 1/8 tsp. ground white pepper
• Snipped fresh chives or edible flowers for garnish, optional