When my kids get to choose a soup, then they always choose broccoli soup. And my son makes a grilled cheese sandwich to have on the side with it.
So my very easy recipe is like this.
Fresh or frozen broccoli (like a head, clean it. But use the whole head.
2 potatoes, peeled and in small pieces
1/2 yellow onion
Boil in water, with vegetable stock. As much water as it just covers the broccoli.
When they start to get soft , just throw it all into a mixer. Swish!
And then heat it up again with 1 dl of cream. Add some salt and pepper. And Voila, it is ready to eat!