Enlarge / Pumpkin pie isn’t complete without a dollop of whipped cream. Danish scientists concocted a fat-free analog from bacteria. Getty Images The human love affair with whipped cream dates back to at least the 16th century, and it’s a staple of all our favorite holiday desserts. Is that slice of Thanksgiving pumpkin pie truly the same without a dollop of whipped cream on top? But whipped cream also contains 38 percent saturated fat. That’s one reason it’s so delightfully […]