I found this video where Gordon Ramsay makes broccoli soup in 5 minutes with just broccoli, water, and salt, so I went to try it out.
You blend the hot broccoli with some hot water to make the soup. And when you blend hot things, it is really hard to keep the lid of the blender pressed tightly. Trust me.
The soup is pretty yummy, but don't add too much water. Mine was very liquidy.