Sure, she's on a hit MTV show, and she's got a lifetime's supply of party frocks and a smokin' hot spread in Maxim -- but now, Stephanie Pratt (formerly known as Spencer's kid sis) has achieved her greatest honor to date: a signature shake at West Hollywood's Millions of Milkshakes!
This past Saturday, the apron-clad Hillzie joined the ranks of Miley Cyrus, Lindsay Lohan, all three Kardashians and, yes, even Speidi, by introducing a new addition to the star-studded menu: Steph's Slumber Party Shake! Check out these pix to see Steph make like Martha Stewart and whip up a batch of her favorite frozen treat.
