For the vinaigrette, whisk 4 tablespoons of vinegar, salt, pepper and sugar. Add the oil drop by drop. Peel the shallot, cut into fine cubes and stir into the vinaigrette
Wash the tomatoes, quarter them. Halve avocado, remove core, remove flesh from skin and cut into cubes. Wash the crayfish and dab dry. Marinate the tomatoes, crayfish flesh and avocado with the vinaigrette. Sort the salad, wash and shake dry
For the eggs, boil about 1 litre of water in a narrow, high pot. Add 3-5 tablespoons vinegar. Beat the eggs one after the other in a cup and let them slide one by one into the boiling water. Cook for approx. 3 minutes, while carefully pressing the egg white with tablespoons against the egg yolk
Carefully mix the crayfish mixture and lettuce leaves. Arrange salad and eggs