Corn is in season from May through September but is at its peak in most places in late summer. Of the many varieties of sweet corn, the most commonly found are yellow, white, and bicolor (yellow and white).
To ensure perfectly cold, crisp lettuce leaves, float the lettuce in a bowl of cold water, drain, and repeat. Spin dry and layer the lettuce on a clean towel, topped with paper towel and layered again. Roll up the paper towel and place in the refrigerator until ready to use.
From the book "Lucinda's Rustic Italian Kitchen," by Lucinda Scala Quinn (Wiley).
If you prefer not to use the raw egg yolk in this recipe, substitute one tablespoon of store-bought mayonnaise. The croutons are best made as close to serving time as possible. Note: Raw eggs should not be used in food prepared for pregnant women, young children, or anyone whose health is compromised.
To make croutons: Preheat oven to 400 degrees. Cut 2 hero rolls (each 3 ounces) into 3/4-inch cubes; scatter on a rimmed baking sheet. Toss with 2 tablespoons olive oil and 1 teaspoon dried oregano; season with coarse salt and ground pepper. Bake until golden, 6 to 8 minutes. Let cool before using.