Ingredients

• 1 tablespoon extra-virgin olive oil
• 2 cloves garlic, minced
• 1 small onion, diced
• 1 tablespoon lemon juice
• 4 cups peeled, seeded and thinly sliced cucumbers, divided
• 1½ cups vegetable broth, or reduced-sodium chicken broth
• ½ teaspoon salt
• ¼ teaspoon freshly ground pepper
• pinch of cayenne pepper
• 1 avocado, diced
• ¼ cup chopped fresh parsley, plus more for garnish
• ½ cup low-fat plain yogurt