I like to freeze the milk or creamer in an ice cube tray beforehand (watch the recipe video above), because it makes the frosty super thick. If you skip this step, the recipe will be much thinner but still taste good. (Do not add regular ice to the recipe because it will water down the taste.) To make the peanut butter frosty, simply combine all ingredients in a blender until smooth. I use a Vitamix for thickest results, but if you have a regular blender just thaw the frozen milk enough for your blender to be able to handle it. Serve cold and enjoy.View Nutrition Facts