The fish is boiled in a little water or steamed in a special pot. Boned, once cool, and cut into small pieces. Add cooked and diced potatoes, hard boiled egg, also diced, and lettuce, cut into strips. Add salt mixture and sprinkle with vegetable oil, lemon juice and black pepper. Mix well, pour into a bowl of salad and garnish with olives. can be ready pour mayonnaise or homemade mayonnaise 1 egg yolk, 1 tbsp vegetable oil and a few drops of lemon juice.