- In a blender or food processor, combine the diced cucumbers, tomatoes, red onion, bell pepper, and garlic. Blend until smooth. 
- Add the vegetable broth, olive oil, red wine vinegar, salt, black pepper, and cayenne pepper (if using). Blend again until well combined and smooth. 
- Taste and adjust seasoning if necessary. If the mixture is too thick, add a little more vegetable broth to reach your desired consistency. 
- Transfer the gazpacho to a large bowl or pitcher and cover. Refrigerate for at least 2 hours, or until well chilled. 
- Serve in bowls, garnished with fresh herbs. Enjoy!