Sauté the finely chopped onion, the chopped peppers and the garlic in the oil for 5 minutes. Deglaze with vegetable stock, bring to the boil again and simmer on a low heat for another 10-15 minutes. Add the tomatoes and simmer for about 10 minutes. If the soup is too runny, continue cooking without the lid. Season to taste with pepper, salt, paprika powder, chilli and sugar.
Baguette, wiener sausages, and if necessary you can decorate the soup with a dollop of sour cream. If there is anything left over, it also tastes good with pasta or rice.