In one pot, boil the pasta according to the directions on the box (about 10-12 minutes)
In a separate pot, melt the stick of butter over medium-to low heat
Add garlic to the melted butter and cook for 2 minutes
Mix in heavy cream
Stir in room-temperature cream cheese
Continue to cook over medium-low heat until the creamy mixture gently bubbles (not boiling!)
Add in the parmesan mozzarella cheeses
Add salt and pepper to taste
Stir regularly until the cheeses are melted
Stir in drained/cooked pasta to the Alfredo sauce and enjoy! Sprinkle with chopped parsley (optional)