In a large saucepan combine the water, garlic, onions, potatoes, bouillon cube and chourico.
Bring to a boil then reduce heat and cook until potatoes are tender, about 20 to 30 minutes.
Remove chourico and blend potato mixture with an immersion blender or in a regular blender until smooth.
Add washed and shredded collard greens to potato mixture and cook for an additional 10 minutes or until greens are tender, taste and add salt if necessary.
Meanwhile slice chourico into thin slices, add a few slices to individual bowls of “caldo Verde” or directly into the pan of soup. Sprinkle soup with olive oil.