Cook pasta according to package instructions. Drain and set aside.

Grate parmesan cheese and set aside, to allow it to come to room temperature.

Alfredo Sauce: Heat a large sauce pan over medium heat. Add butter and cook until melted. Add garlic, stirring frequently for 1 minute. Add cream and whisk to combine, bring to a simmer and cook for 3-4 minutes, stirring often. Turn heat to low and add parmesan cheese, whisking until smooth. Season with salt and pepper to taste. Add pasta and toss to coat.

Season shrimp with salt and pepper. Melt 1 tablespoon butter or oil in a large skillet over medium high heat. Add shrimp and cook, stirring occasionally, until pink, about 2-3 minutes.

Serve noodles with a few shrimp on top. Garnish with fresh parsley, if desired.