Gather and measure all your ingredients so everything is ready to go.
Mince three cloves of garlic and add them to a small bowl with mayonnaise, two tablespoons of Parmesan, anchovies, lemon juice, Worcestershire sauce, and mustard. Mix until smooth and creamy, then season with salt and pepper. Refrigerate the dressing while you prepare the rest.
Heat oil in a skillet over medium heat. Slice the remaining garlic cloves into quarters and add them to the hot oil. Cook until browned and fragrant, then remove them. Add the bread cubes to the garlic-infused oil and toast, stirring often, until they turn lightly golden. Transfer the croutons to a plate and season with salt and pepper.
Place the chopped lettuce in a large mixing bowl. Add the chilled dressing, the remaining Parmesan, and the warm croutons. Toss until everything is evenly coated and glossy.
Serve immediately and enjoy the perfect crunch and creaminess in every bite.