Callie's Buttermilk Biscuit Mix Callie’s Biscuits fans have long been asking for a dry biscuit mix so that they too can master biscuit making with their time-tested biscuit recipe.  They've created not only a pantry staple for their classic buttermilk biscuit but also shared the variations for their cheese and black pepper biscuit recipes.  Simply incorporate butter, cream cheese and buttermilk with one bag of Callie’s Buttermilk Biscuit Mix to make one dozen tender, buttery biscuits. One package of biscuit mix weighs approximately 13 ounces.