# What You'll Need:
→ Pasta
01 - 14 ounces elbow macaroni or short pasta
→ Cheese Sauce
02 - 2 tablespoons unsalted butter
03 - 2 tablespoons all-purpose flour
04 - 2 cups whole milk
05 - 4 ounces Gruyère cheese, grated
06 - 4 ounces sharp cheddar cheese, grated
07 - 3 ounces Fontina cheese, grated
08 - 2 ounces Parmesan cheese, grated
09 - 1 teaspoon Dijon mustard
10 - 1/2 teaspoon freshly ground black pepper
11 - 1/4 teaspoon fine sea salt, plus additional for pasta water
12 - Pinch of freshly grated nutmeg
→ Topping & Finish
13 - 2 tablespoons black truffle oil
14 - 0.7 ounces fresh black truffle, thinly shaved, or 1 to 2 teaspoons high-quality truffle paste
15 - 1.5 ounces panko breadcrumbs
16 - 1 tablespoon unsalted butter, melted
17 - 2 tablespoons Parmesan cheese, grated
18 - Chives, finely chopped, optional for garnish
# Method:
01 - Preheat oven to 390°F. Grease a medium baking dish with butter or cooking spray.
02 - Bring a large pot of salted water to a rolling boil. Add macaroni and cook until just al dente according to package directions. Drain and set aside.
03 - In a large saucepan, melt 2 tablespoons butter over medium heat. Add flour and whisk continuously for 1 to 2 minutes until the mixture is pale golden in color.
04 - Gradually whisk in the milk while stirring constantly to prevent lumps from forming. Bring to a gentle simmer and cook for 4 to 5 minutes until the sauce thickens and coats the back of a spoon.
05 - Remove from heat and add Gruyère, cheddar, Fontina, and Parmesan cheeses. Stir until completely melted and smooth. Season with Dijon mustard, black pepper, salt, and nutmeg. Mix thoroughly.
06 - Add the cooked macaroni to the cheese sauce and stir until every piece is evenly coated.
07 - Pour the macaroni and cheese mixture into the prepared baking dish and spread level.
08 - In a small bowl, combine panko breadcrumbs, 2 tablespoons Parmesan cheese, and melted butter. Mix until evenly moistened. Sprinkle the mixture uniformly over the pasta.
09 - Bake in the preheated oven for 15 to 20 minutes until the top is golden brown and the mixture is bubbling at the edges.
10 - Remove from the oven and drizzle with black truffle oil. Scatter shaved truffle evenly over the top. Allow to rest for 5 minutes before serving. Garnish with chopped chives if desired.