Nothing. Thanksgiving is nothing without pie.
And there is perhaps nothing worse than serving half-burnt pumpkin pie made from canned puree and a pre-made crust. Seriously, it's enough to ruin the entire holiday. But, that's not to strike fear in the hearts of all those who volunteered to bring dessert to the familial celebration of the most gluttonous holiday in America.
Sister Pie, a little lady-run bakery on the east side of Detroit, doesn't want you to serve that horrible excuse for pie either. See, they specialize in making both sweet and savory versions of the confection and have upped their game for the holiday.