Virtual Sefer ShortyB's Sweet Potato Casserole

*1 stick melted margarine
*2 eggs
*3 16oz cans sweet potatoes, mashed
3/4 cup sugar
1 T vanilla
(Mix all the above ingredients well and pour into a 9x13 pan.)
*3/4 cup brown sugar
*3/4 stick melted margarine
*1 cup pecans, very coarsley chopped
1/3 cup milk
1/3 cup flour
Mix all ingredients and slowly pour on top of the sweet potato mixture; spread evenly without disturbing the sweet potato mixture. Bake at 350 degrees for 1 hour or until the topping is set as a pecan pie would be.