No matter how much stuffing and mashed potatoes we eat on Thanksgiving, there always seems to be room for a little dessert. And more specifically, a slice of Thanksgiving pie. Whether it’s apple pie, pumpkin pie, or sweet potato pie-every family has their own tradition. In TN Google says Tennesseans ate lots of Buttermilk Pie on T-Day. The determination was made based on the most searched pies 30 days in every state across the country.