Sweet Potato Souffle
["3 c. cooked mashed sweet potatoes", "1/2 c. white sugar", "2 eggs", "1 tsp. vanilla", "1 c. pecans or walnuts", "1 c. brown sugar", "3 heaping Tbsp. flour"]
["Dot with butter.", "Bake at 350\u00b0 until it bubbles and the butter and brown sugar are melted."]
["potatoes", "white sugar", "eggs", "vanilla", "pecans", "brown sugar", "flour"]