White Gazpacho

Name: White Gazpacho
Ingredients: For the soup; 1 cucumber, peeled and coarsely chopped; 1-2 cloves garlic; 1 cup chicken stock; 2-3 sprigs fresh parsley; 1 tablespoon freshly squeezed lemon juice (or white vinegar); 1/2 teaspoon salt (adjust to taste); 1 cup sour cream; 1/2 cup Greek yogurt (or plain yogurt); For the garnish; 1 cup diced tomatoes, any variety; 1 cucumber, peeled, seeded and diced; 5-6 sprigs parsley, minced; 2-3 green onions, minced (including the green tops); 5-6 frseh chives, minced (optional); 1 cup croutons (optional)