Step 1

Heat oven to 350°F. Carefully peel paper-like skin from around bulb of garlic, leaving just enough to hold garlic cloves together. Cut 1/4 to 1/2 inch from top of bulb to expose cloves. Place cut side up on 12-inch square of foil. Drizzle with 2 teaspoons of the oil; wrap securely. Place in pie plate or shallow baking dish.

Step 2

Bake 45 to 50 minutes or until garlic is tender when pierced with a fork. Cool 5 minutes. Gently squeeze garlic out of cloves onto cutting board; finely chop. Set aside.

Step 3

In 4-quart saucepan or Dutch oven, cook spaghetti as directed on box; drain. Return to saucepan; toss with roasted garlic, remaining 2 tablespoons oil, 1/2 cup of the Parmesan cheese, the salt, red pepper flakes and basil. Sprinkle with remaining 1/2 cup Parmesan cheese. Serve immediately.