Sweet Potato Souffle

4 pounds sweet potato 1 stick butter, room temperature 1 cup sugar 4 large eggs 3 Tablespoons flour 1 cup milk 1/4 teaspoon salt 1 teaspoon each: vanilla, coconut, and almond extract Topping: 1/2 cup chopped pecans 2 Tablespoons brown sugar 1/4 teaspoon cinnamon

Peel and cook potatoes. Beat in Cuisinart Stand Mixer until smooth. Add ingredients one at a time, beating after each addition. Pour into large baking dish. Spread topping evenly over casserole. Bake at 350 for one hour.