For the vinaigrette, add stock, vinegar and oil. Peel garlic and press through a garlic press. Peel the onion, clean and wash the spring onions and cut them into fine rings.
Wash and quarter the tomato, remove the seeds and dice the flesh. Wash parsley and chop it except for a little bit for garnishing. Warm the vinaigrette slightly. Add prepared ingredients. Peel the skin from the black pudding.
Cut cheese and blood sausage into slices. Arrange fan-shaped on plates, drizzle with the vinaigrette and serve garnished with parsley. Pretzels taste good with it.