Sweet Potato Casserole

4 cups Hot mashed sweet potatoes
Butter or margarine
2 tablespoons Granulated sugar
2 each Eggs -- beaten
1/2 cup Pecans -- chopped
1/3 cup Packed brown sugar
2 tablespoons Flour

Mix the sweet potatoes, 1/3 C butter and the granulated sugar. Beat in the eggs. Pour into a greased 2 qt casserole. Combine the pecans, brown sugar and flour. Stir in 2 tablespoons of melted butter. Sprinkle the mixture over the sweet potatoes and bake at 325 for 1 hour.