The nation's best new dairy product of the year was invented right here in metro St. Louis.Prairie Farms' Milk Snack bars are being pitched as a new take on chocolate cake —"America’s first refrigerated snack cake bar to combine chocolate cake with a real whole milk crème filling." You've probably seen them being promoted on billboards around town; they look kind of like a Little Debbie and kind of like an ice cream bar.
There's a reason they're getting such a big push; editors and readers of Dairy Foods Magazine say they're exceptionally tasty.…