u/Buffsub48wrchamp

I have made both authentic and American versions of the sauce and its genuinely impressive how much better heavy cream makes the sauce, especially when it comes to reheating. Microwaving authentic alfredo requires you to supervise it the whole time or else you are gonna be left with a shit ton of melted butter and a ruined sauce. Meanwhile adding heavy cream allows you to not have to hover over the mofo as the sauce stays the way its supposed to.