Peel the tomatoes and cut them into medium-sized pieces. Roughly chop the onions.
Briefly sweat the onions in olive oil, then add the tomatoes and deglaze with wine vinegar and balsamic vinegar. Chop the olives into small pieces. Finely chop the chilli pepper and add both. Then add sugar, paprika and salt. Season to taste with pepper. Cook everything without the lid for approx. 60 - 90 minutes until it thickens, stirring again and again.