Anne's Sweet Potato Casserole

In a large mixing bowl, beat together sweet potatoes, vanilla, melted butter, sugar, eggs and milk.

Pour into a lightly greased 9 x 13 inch or 9 x 9 inch baking pan.

Combine brown sugar, flour and butter for topping until crumbly, using processor fitted with steel knife, or pastry blender.

Mix in nuts. Sprinkle topping mixture over sweet potatoes.

At this point, dish can be refrigerated, covered.

Bake uncovered in preheated 350° oven for 45 to 50 minutes until browned and bubbly.