Baked Ziti

1 pound ziti
5 cups tomato sauce
3 cups whole milk ricotta
2 cups shredded mozzarella
1/2 cup grated Parmesan
6 tablespoons unsalted butter, cut into 1/4-inch pieces

Preheat oven to 350 degrees F.

In a large pot, bring 6 quarts of salted water to a boil. Add pasta and cook until al dente, about 8 minutes. Drain pasta in a colander and set aside. If not using immediately, cover top with plastic wrap so that pasta does not dry out. Do not rinse pasta with water since you want to retain the pasta's natural starches so that the sauce will cling to the ziti.

In a large bowl, combine the tomato sauce and ricotta and mix well. Add the cooked ziti and toss gently.

In a large greased baking dish, pour in pasta mixture. Sprinkle the mozzarella, Parmesan, and remaining Romano all over the top. Dot with the butter. Place baking dish on top of baking sheet covered with aluminum foil to collect any drippings from the dish. Bake until top is golden brown and bubbly, about 30 to 40 minutes.

Source: Giada De Laurentiis