I just got a blender (yay!) and want to make smoothies, so I've plundered a lot of recipes from this site to try. Those that call for milk seem to reference either plain cow's milk or almond milk. Is there any reason I couldn't use buttermilk instead, assuming that's a flavor that goes well with the fruit or other ingredients in a recipe? Or does buttermilk not play nicely with blenders?
You deserve a cookie.