Base:
3 cups mashed sweet potatoes (approx 5 potatoes)
1 cup sugar
3 eggs
1 tsp vanilla
⅓ cup evaporated milk
1 stick butter
Topping:
1 stick butter (not melted)
1 cup brown sugar
½ cup all-purpose flour
⅓ cup chopped pecans
Preheat oven to 350°.
Whip together base ingredients and pour into baking dish. Add topping.
Bake at 350° for 30 minutes.