Pumpkin, Sweet Potato, Pecan Souffle-type-thingie! Over the years, I have been fortunate to have been at the Thanksgiving tables of many of my friends... And, through these friendships, I have been introduced to the most succulent fried turkeys, seductive pumpkin pies, gorge-till-you-pop rum cakes, drool-inducing pineapple casseroles... But it's the sweet potato souffle that has