Roasted Garlic Alfredo Sauce

I saw this on Rachel Ray's show. We have really enjoyed this recipe. Here is the recipe off of her website.

3 tablespoons EVOO - Extra Virgin Olive Oil
1 head garlic
1 cup heavy cream
1/2 cup (2 handfuls) flat-leaf parsley leaves, chopped
1/2 cup Parmigiano

Slice the top half-inch off the top of a head of garlic. Place it on a piece of aluminum foil, drizzle with a little EVOO and sprinkle with a little salt and pepper. Wrap the foil around the garlic and place in the oven and roast for 45 minutes, until the garlic is soft and the flesh is golden brown. Remove from the oven and let cool. When cool enough to handle, squeeze out all the flesh from the cloves onto a cutting board and, with the side of your knife, mash the garlic into a smooth paste.

Add the paste to a small saucepot over medium heat along with the cream and whisk to combine. Bring up to a boil then reduce to a simmer and cook until the cream has reduced by half.

Place a large pot of water over high heat and bring up to a boil to cook the fettuccine. Add some salt and the pasta to the water and cook according to package directions to al dente. Drain the pasta and return it to the pot. Add the roasted garlic cream, 1/2 cup Parmigiano and parsley, toss to combine. Season with salt and pepper, to taste.