Hands down this is the best recipe for a blended cold Frappacchino. I use only Starbucks whole bean Espresso beans freshly gound and brew a double shot for this recipe. I also am using a single serve blender for this recipe, and mixing it inside the single serve blender cup. 1 shot is 1 ounce of espresso and a double shot is 2 ounces. (This recipe calls for 2 ounces of brewed espresso). Use your double shot espresso holder for this recipe.