Cool down this summertime with Martha Stewart's delightful Banana, Berry, and Buttermilk Popsicles! Integrating the natural sweetness of bananas and berries with the velvety tang of buttermilk, these popsicles are the perfect way to beat the heat. Given you by Martha Stewart: Subscribe for more Martha now: Want more Martha? Twitter: Facebook: Pinterest: Instagram: Google Plus: Martha's Official Blog: . The Martha Stewart channel offers inspiration and concepts for innovative living. Use our trusted dishes and how-tos,…