Best Homemade Macaroni And Cheese | Only Recipe App

Ingredients

• 16 ounces uncooked large elbow macaroni, large shells, or cavatappi pasta
• 6 tablespoons salted butter
• 1/3 cup grated yellow onion
• 2 teaspoons dry mustard
• 1 teaspoon kosher salt
• 1/4 tsp. black pepper
• 1/8 tsp. freshly grated nutmeg
• 1/8 tsp. 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 (about 1 cup), plus 4 oz. diced (about 1 cup), divided
• 4 ounces sharp white Cheddar cheese, shredded, (about 1 cup), plus 4 oz. diced (about 1 cup), divided