Sweet Potato Fluff

3 cups sweet potatoes, cooked and mashed (4 medium sweet potatoes)
1 ¼ cup sugar
½ cup melted butter (not margarine)
3 eggs (separated)
1½ teaspoons vanilla
1/3 cup milk

Mix well the above ingredients, except the egg whites. Beat egg whites until stiff. Fold into potato mixture. Put into a greased 2 qt. baking dish. Bake 15 minutes at 350°

Topping:
1 cup light brown sugar
½ cup flour
1/3 cup butter (not maragine)

Mix together until crumbly. Add 1 cup finely chopped Pecans. Mix well. Sprinkle on top of potato mixture. Return to oven and bake 20-25 minutes at 350°.