Put the egg in boiling water and cook for about 9 minutes. In the meantime clean and wash the salad, pluck into bite-sized pieces and drain well in a sieve. Clean, wash and slice the tomatoes.
Wash the chives, dab dry and cut into fine rolls. Mix vinegar, salt, pepper, sugar and chives. Fold in the oil. Quench the egg, remove the shell and quarter the egg. Clean the mushrooms, wash if necessary and slice finely.
Skip the bacon in a pan without fat. Arrange lettuce, tomatoes, mushrooms, 1/4 egg each and a slice of bacon on 4 plates. Drizzle the vinaigrette evenly on top. Garnish as desired with chives.
Baguette tastes good with it.