Peel and slice the onion.
Wash and halve the pepper, deseed and cut into strips.
Dice the bacon.
Heat the oil in a pan.
Saute the bacon with the onions and pepper for 4-5 minutes.
Add the tomato puree and stir for 1 minute.
Pour in the stock.
Pour the stock.
Bring to the boil, add the bay leaves, reduce the heat and simmer for 10 minutes until tender
Meanwhile, cut the gherkins into strips.
Cut the meat into strips and dice the kassler.
Add everything to the soup.
Bring to the boil.
Stir in 60g sour cream
Season with lemon juice.
Season with salt and pepper to taste.
Serve garnished with the remaining sour cream and fresh herbs.