4 cups sweet potatoes 1/2 cup white sugar 2 eggs, beaten 1/2 teaspoon salt 4 tablespoon butter, softened 1/2 cup milk 1/2 teaspoon vanilla extract 1/2 cup packed brown sugar 1/3 cup all- purpose flour 3 tablespoon butter, softened 1/2 cup chopped pecans

1. Preheat oven to 325 degrees F. Put sweet potatoes in a medium saucepan with water to cover. Cook over medium high heat until tender; drain and mash.
2. In a large bowl, mix together the sweet potatoes, white sugar, eggs, salt, butter, milk,and vanilla extract. Mix until smooth. Transfer to a 9x13 inch baking dish.
3. In medium bowl, mix the brown sugar and flour. Cut in the butter until the mixture is course. Stir in the pecans. Sprinkle the mixture over the sweet potatoes mixture.
4. Bake in preheated oven 30 minutes, or until the top is lightly brown.