Filling:
1/2 stick (4 tablespoons)butter, melted, plus more for
buttering the baking dish
3 to 4 large sweet potatoes (about 1 3/4 pounds),
peeled and cubed
1/2 cup milk
1/4 cup brown sugar, packed
1 teaspoon pure vanilla extract
1/2 teaspoon salt
2 large eggs
Toppings:
1/2 cup all-purpose flour
1/2 cup brown sugar, packed
1/2 stick (4 tablespoons) butter, melted
1/4 teaspoon salt
3/4 cup chopped pecans