01 -
Bring a large pot of salted water to a boil. Add the pasta and cook until al dente, then drain and set aside.
02 -
In a large saucepan, melt unsalted butter over medium heat. Whisk in all-purpose flour and cook for 1 to 2 minutes, stirring constantly.
03 -
Gradually whisk in whole milk or heavy cream until the mixture is smooth and thickened. Stir in pumpkin purée until fully incorporated and vibrant.
04 -
Add shredded cheddar and Gruyère cheeses, stirring until melted and the sauce is smooth. Season with nutmeg, garlic powder, paprika, salt, and black pepper.
05 -
Fold the cooked pasta into the cheese sauce, ensuring every piece is thoroughly coated.
06 -
Transfer the mixture to a baking dish, sprinkle with breadcrumbs and grated parmesan, and bake at 375°F until bubbly and golden, about 20 minutes.