4 cups cooked mashed sweet potatoes
1 cup white sugar
1 cup coconut, shredded
½ cup (1 stick) margarine
½ cup milk
1 teaspoon vanilla

Topping Mix
1 cup brown sugar
1 cup nuts, chopped
1/2 cup flour
½ stick margarine

Mix all ingredients together and pour into a greased casserole dish. Combine all ingredients until mixture is crumbly. Spread topping mix over potato mixture and bake for 15 minutes at 400 F.