This variation of Caesar salad comes together right in the bowl. Rather than dumping a creamy and heavy (albeit delicious) dressing on the romaine, in this recipe the garlic is mashed together with the anchovies and olive oil, then tossed with the romaine, lemon juice, egg yolk and Parmesan cheese.
Add the olive oil and crushed red pepper flakes to a small saucepan over medium-low heat, and simmer, stirring frequently, until the oil becomes fragrant, about 6 minutes. Remove from heat and let cool completely. Strain the oil into a small bowl, discarding the red pepper flakes.
Heat oven to 350ºF (180ºC). Toss the cubed bread with the oil and season with salt and pepper. Spread in an even single layer on an aluminum foil-lined baking sheet. Bake until the croutons are crispy and golden brown, about 15 minutes.
Set aside and let cool. Croutons can be kept in an airtight container for up to two weeks.
For the tableside Caesar salad:
In a large wooden salad bowl use the prongs of a fork of the back of a spoon to mash together the garlic clove with the anchovies and 1 tablespoon of the olive oil until it comes together and is almost completely combined. Add the remaining olive oil and continue to mash together.
Add the romaine and toss to coat in the dressing. Squeeze the lemon over the top (be sure no seeds get in) and season to taste with salt and pepper, tossing to combine.
If adding, add the egg yolk over the top and toss the romaine to coat and emulsify the dressing.
Toss with half of the Parmesan and top with the remaining cheese and croutons. Serve in salad bowls immediately.