6 Servings 45 min Cook
1 Cup Parmesan Cheese
4 Cup cherry tomatoes Cherry Tomatoes
4 Tbsp chopped Chives
16 Oz Pasta
5 Cup Mascarpone Cheese
Halve cherry tomatoes lengthwise.
Put oven rack in upper third of oven and preheat oven to 400F.
Line a large shallow baking pan with foil and butter foil.
Arrange tomatoes, cut sides up, in pan and sprinkle with 1/2 teaspoon salt and 1/4 teaspoon black pepper.
Roast until slightly plumped, 15 to 20 minutes.
Cook pasta in a 6- to 8-quart pot of boiling salted water , stirring occasionally, until al dente, about 12 minutes.
Reserve 1 1/2 cups pasta cooking water, then drain pasta well and transfer to a large bowl.
Add mascarpone and stir until melted.
Add reserved cooking water, tomatoes, half of parmesan, 3 tablespoons chives, 3/4 teaspoon salt, and 1/2 teaspoon black pepper and toss well, then cool to warm.
Butter a 3-quart (13- by 9-inch) gratin or other shallow baking dish.
Toss pasta mixture again, then spoon into gratin dish.
Sprinkle remaining parmesan over top.
Bake pasta until golden and bubbly, 18 to 20 minutes.
Sprinkle with remaining tablespoon chives.