Halve the baguette lengthwise and cut into thin slices. Heat 3-4 tablespoons of oil in portions in a large tall coated pan (with lid). Fry the baguette slices on both sides until crispy.
Cut the sausages into slices. Remove the baguette. Heat 1 tablespoon of oil in the pan. Fry the slices of sausage for about 5 minutes, turning from time to time.
Wash the tomatoes and cut them into quarters or slices depending on their size. Peel and roughly dice the onions. Peel garlic and cut into slices. Add onions and garlic to the sausage and fry.
Add tomatoes and vinegar, bring everything to the boil, cover and stew for about 10 minutes.
Wash the basil, shake dry. Cut the leaves into strips. Season tomato sausage pan with salt, pepper and 1 pinch of sugar. Fold in the toasted bread and basil. Serve immediately.
Drink tip: strong red wine, e.g. Merlot.