01 -
Preheat oven to 180°C. Lightly butter a large baking dish.
02 -
Boil the cavatappi pasta in generously salted water for 1 minute less than the package instructions. Drain and rinse with cool water. Set aside.
03 -
In a large saucepan over medium heat, melt 50 g butter. Whisk in flour and cook for 1 minute to form a roux. Gradually pour in whole milk and evaporated milk, whisking constantly until smooth and slightly thickened. Add Dijon mustard, onion powder, garlic powder, parsley, salt, and pepper. Simmer for 3-4 minutes.
04 -
Lower the heat to low. Stir in cheddar and Monterey Jack cheeses, reserving 50 g of each for topping. Continue stirring until fully melted and smooth.
05 -
Add cooked pasta to the cheese sauce. Gently fold until evenly coated.
06 -
Spoon half of the macaroni mixture into the prepared baking dish. Sprinkle half the Gruyère cheese over the pasta. Dollop sour cream evenly over the layer.
07 -
Add remaining pasta mixture. Top with reserved cheddar, Monterey Jack, and remaining Gruyère cheese.
08 -
In a bowl, combine panko breadcrumbs and melted butter until evenly moistened. Sprinkle over casserole.
09 -
Bake for 22–27 minutes or until the top is golden brown and the casserole is bubbling.
10 -
Remove from oven and allow to stand 5 minutes before serving.