What makes these mashed potatoes so luscious, you ask? Well, a cup of heavy cream, for starters. You’ll make a milk, cream, and butter mixture that’s infused with rosemary and bay leaf to add a sophisticated twist without leaning too hard into the herbal notes. (Because, let’s be honest, nobody wants a sprig of rosemary stuck in their teeth.) Another key to luxurious mashed potatoes is using a potato ricer, which transforms baked potatoes into airy fluff rather than the gluey mashed potatoes you might be used to.