Preheat your oven to 375°F (190°C). Cut the 200 g Ciabatta bread into cubes (about 1-inch size).
In a mixing bowl, combine the cubed 200 g Ciabatta bread, 2 Tbsp. extra virgin olive oil, minced 2 garlic cloves, and 1/4 tsp. salt. Toss well to coat the bread evenly.
Spread the bread cubes in an even layer on a baking sheet.
Bake in the preheated oven for about 10 minutes or until the croutons are golden brown and crispy, tossing them halfway through for even browning.
The Lettuce
While the croutons are baking, wash and dry both types of lettuce: 600 g Romaine lettuce and 250 g Boston lettuce.
Tear them into bite-sized pieces using your hands. Place the lettuce in a large salad bowl.
The Dressing
In a medium mixing bowl, whisk together the 4 egg yolks, 5 Tbsp. Dijon mustard, minced 4 garlic cloves, 4 Tbsp. Japanese Kewpie mayonnaise, 2 Tbsp. lemon juice and minced 6 anchovies.
Gradually drizzle in about 3 Tbsp. extra virgin olive oil while whisking constantly until the dressing is creamy and emulsified.
Fold in the grated 120 g Parmigiano Reggiano cheese and season with at least 1/4 tsp. salt and 1/4 tsp. freshly ground black pepper. Adjust to taste as needed.
The David's Caesar Salad
Once the croutons are baked and cooled slightly, add them to the bowl of lettuce.
Pour the dressing over the lettuce and croutons, and toss gently to combine everything well. Important, you should do the step only before serving, otherwise, the croutons will become soggy.
Serve immediately, garnished with Parmigiano Reggiano cheese, lemon juice and freshly ground black pepper to taste.