Lobster Mac and Cheese Recipe

Ingredients (15)

• 8 ounces elbow macaroni
• 1/2 teaspoon salt (plus more for pasta water)
• 6 tablespoons butter (divided)
• 1 tablespoon fresh parsley (chopped)
• 4 scallions (thinly sliced)
• 3 tablespoons all-purpose flour
• 2 1/2 cups milk
• 1 large egg
• 1 cup sharp cheddar cheese (shredded)
• 1 cup mild cheddar cheese (shredded, divided; or cheddar Jack)
• 1/4 teaspoon ground nutmeg
• 1/8 teaspoon black pepper (freshly ground)
• 4 tablespoons dry sherry
• 8 ounces lobster meat (cooked, chopped; about two 1-pound lobsters)
• 1 1/2 cups breadcrumbs (made from fresh bread)