Potatoes, peel, wash and cut into approx. 1 cm pieces. Heat the oil in a wide saucepan. Brown the potatoes in it at medium heat. Meanwhile peel and wash carrots, cut them into quarters lengthwise and cut them into small pieces. Clean, wash and chop the fennel. Peel onion and garlic, chop both finely. Drain the corn.
Add the carrots, fennel, onion and garlic to the potatoes and steam briefly. Stir in wine, 400 ml water and stock, simmer for about 8 minutes. Mix cream with flour until smooth, stir into the boiling broth. Simmer for about 2 minutes, stirring more often.
Rinse fish fillet and shrimps in cold water and pat dry. Cut the fillet into pieces of about 3 cm. Add to the vegetable pot with prawns and corn. Cover and let simmer for about 5 minutes. Wash parsley, shake dry and chop finely. Season fish stew with salt and pepper and sprinkle with parsley. Roasted farmhouse bread tastes good with it.