Sweet Potato Surprise

4 sweet potatoes, baked and mashed (you can use canned)
1 c. sugar
1/3 c. melted butter
1/2 c. milk
2 eggs, beaten
1 t. vanilla
Topping:
1 c. coconut
1 c. pecans
1 c. brown sugar
1/3 c. flour
1/3 c. butter

Mix everything except the topping ingredients, put in 2 1/2 quart baking dish.
Combine topping ingredients, sprinkle over sweet potatoes.
Bake at 375 for 20 minutes. Serves 6-8.