For the vinaigrette, whisk vinegar, salt, pepper and sugar. Add the oil drop by drop. Clean, wash and shake the salad dry. Wash and slice the tomatoes. Peel 1 onion and cut into rings. Pluck the lettuce into bite-sized pieces. Mix everything with the vinaigrette
Peel and chop the remaining onion. Cut bacon into short strips. Fry the bacon in a pan without fat at a moderate heat until crispy. After approx. 8 minutes add diced onion and fry for another approx. 3 minutes. Wash parsley, shake dry, pluck leaves from the stalks and chop finely
Peel, wash and halve the potatoes and cook in boiling salted water for about 20 minutes. Wash the plaice, dab dry, season with salt and pepper and turn in flour. Heat clarified butter in 2 large pans in portions. Fry the plaice one after the other on each side for about 4 minutes. Keep finished plaice warm
Arrange plaice, potatoes, bacon and salad. Sprinkle with parsley