Steps
1. Peel and chop the cucumber, tomatoes, red onion, and garlic.
2. In a blender, combine the chopped vegetables, vegetable broth, basil leaves, salt, and pepper. Blend until smooth.
3. Chill the soup in the refrigerator for at least 1 hour.
4. Before serving, drizzle with olive oil and garnish with additional basil leaves.