01 -
Boil a large pot of water and cook the pasta as directed on the package. Drain, rinse with cold water, toss with a little oil to avoid sticking, and set it aside.
02 -
In a medium saucepan, mix together the marinara, heavy cream, tomatoes, and sugar. Heat gently until it simmers, then stir in 1/2 cup Parmesan cheese, 1/2 cup fontina, and 1/2 cup mozzarella. Keep stirring until it starts bubbling, then take it off the heat.
03 -
Put the pasta in an oven-safe dish, pour the sauce evenly on top, then sprinkle with 1 cup mozzarella and 1/4 cup Parmesan. Finish with breadcrumbs, and broil until it's golden and bubbly.
04 -
Before serving, sprinkle some freshly grated Parmesan cheese on top.