Caesar Salad

Ingredient:

• Croutons
• 3 cups firm day-old white bread cubes (3/4-inch pieces) (about 5 ounces)
• 1/2 cup extra-virgin olive oil
• 6 oil-packed anchovy fillets
• 1/4 teaspoon kosher salt
• 1/4 teaspoon black pepper
• Dressing and Salad
• 4 to 6 oil-packed anchovy fillets, chopped
• 1 large egg yolk
• 1 large garlic clove, grated (about 3/4 teaspoon)
• 1/2 teaspoon grated lemon zest
• 2 tablespoons fresh lemon juice
• 1 teaspoon Dijon mustard
• 1/3 cup canola oil
• 1 ounce Parmesan cheese, grated (about 1/4 cup), plus more for serving
• 1/2 teaspoon Worcestershire sauce
• 1/4 teaspoon kosher salt, plus more to taste
• 1/4 teaspoon black pepper, plus more to taste
• 4 (4- to 5-ounce) small romaine heads (such as Little Gem), separated into leaves
• Lemon wedges, for serving