For the Italian meringue, whisk the egg whites and lemon juice in a kitchen mixer on a medium speed.
For the Greek salad, whisk the oil, lemon juice and zest, sugar and oregano together in a bowl until well combined.
To make the vinaigrette, whisk the olive oil and lemon juice together in a bowl until thick.
Meanwhile, whisk egg, egg yolks and lemon juice in a medium bowl.
Whisk the balsamic vinegar, lemon juice and the remaining olive oil together until well combined.
Whisk together mustard, egg yolks, soy sauce, lemon juice and just enough olive oil (start with a tablespoon) to make a smooth dressing.
In a medium-size bowl, whisk lemon juice, mustard and pepper until blended.
Whisk the egg yolks and lemon juice together in a bowl.
Whisk rind and juice with olive oil.
In a mixing bowl, whisk the olive oil, lemon juice and pepper to blend.