Ingredients
Method
- Boil cavatappi 2 minutes short of tender, reserve 1 cup pasta water and drain.
- Melt 3 tablespoons butter, whisk in flour for 1 minute, add milk and simmer until lightly thickened.
- Remove from heat and melt in cheddar, Fontina, Gouda, half the Parmesan and salt, then fold in pasta and half the bacon.
- Transfer to a broiler-safe dish and mix panko with remaining melted butter, Parmesan and bacon.
- Scatter over the pasta and broil 2 to 4 minutes until toasted and bubbling.