A Boston Shake is a unique item to Valley Dairy Freeze. It is a combination of shake/malt and a sundae, in either a 14 (small) or 20 (large) oz sizes. You get to create your very own and unique combination and can be as crazy and wild as you want with the choices.
EX: "I'd like a large strawberry chocolate Boston Shake with whip cream and nuts."-Meaning you want a strawberry shake and a chocolate sundae. or "I'd like a peanut butter-fudge banana Boston Shake with whip cream, no nuts"-meaning you want a peanut butter-fudge shake and a banana sundae.