Step 1

Adjust oven rack to middle position and preheat oven to 375°F (190°C). In a small bowl, combine 3 tablespoons (45ml) olive oil with minced garlic and whisk for 30 seconds. Transfer to a fine-mesh strainer set over a large bowl and press with the back of a spoon to extract as much oil as possible, leaving garlic behind. Reserve pressed garlic separately. Add bread cubes to garlic oil and toss to coat. Add 2 tablespoons Parmesan cheese, season to taste with salt and pepper, and toss again. Transfer to a rimmed baking sheet. Bake until croutons are pale golden brown and crisp, about 15 minutes. Remove from oven and toss with 2 more tablespoons Parmesan. Allow to cool.

Step 2

While croutons bake, make the dressing. Combine egg yolk, lemon juice, anchovies, Worcestershire sauce, pressed garlic, and 1/4 cup Parmesan cheese in the bottom of a cup that just fits the head of an immersion blender or in the bottom of a food processor. With blender or processor running, slowly drizzle in canola oil until a smooth emulsion forms. Transfer mixture to a medium bowl. Whisking constantly, slowly drizzle in remaining 1/4 cup (60ml) extra-virgin olive oil. Season to taste generously with salt and pepper.

Step 3

To serve, toss lettuce with a few tablespoons of dressing, adding more if desired. Once lettuce is coated, add half of remaining cheese and three-quarters of croutons and toss again. Transfer to a salad bowl and sprinkle with remaining cheese and croutons. Serve.