Place cucumber into bowl of a food processor and pulse for 10
seconds to chop into small pieces. Add remaining ingredients, except
black pepper. Process until ingredients are mixed, about 20 seconds.
Avoid over-processing so bits of cucumber remain. Add freshly ground black
pepper to taste.
Cover and refrigerate for at least 4 hours to allow flavors to
blend. Makes 1 1/2 cups or 24 tablespoons.