Holy Homemade Macaroni | Cooking Professionally

Ingredients

• 16 ounces large elbow macaroni, uncooked, can substitute large shells or cavatappi
• 6 tablespoons salted butter
• 1/3 cup yellow onion, grated
• 2 teaspoons dry mustard
• 1 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 1/8 teaspoon nutmeg, freshly grated
• 1/8 teaspoon cayenne pepper
• 6 tablespoons all-purpose flour
• 3 1/2 cups milk
• 1 3/4 cups heavy cream
• 2 teaspoons Worcestershire sauce
• 4 ounces extra-sharp yellow cheddar cheese, shredded, divided, plus 4 ounces, diced
• 4 ounces sharp white cheddar cheese, shredded, divided, plus 4 ounces, diced
• fresh parsley leaves, optional, to taste, for garnish