Clean and dice the peppers and fry them together with the finely chopped onions and the grated ginger in a little olive oil (possibly also with garlic - depending on whether you can smell it). Add quartered potatoes and deglaze with the vegetable stock. Season with a little salt and a little more pepper.
Simmer for approx. 15 minutes, puree and season to taste. If you like, you can add a little cream.
When the soup has been steeped for a while, season to taste again (draws in well).