Sweet Potato Casserole

3 cups sweet potatoes, baked and mashed

1/2 teaspoon vanilla

1/2 cup margarine or butter, melted

1 cup sugar

2 eggs, beaten

1/2 cup milk

Ingredients - Topping

1 cup brown sugar

1/2 cup flour

1/2 cup butter

1 cup chopped pecans

In a large mixing bowl, beat together first 6 ingredients. Pour into a lightly greased 9 x 13 inch 

or two 9 x 9 x 9-inch baking pans. In a processor fitted with steel knife, combine ingredients for

 topping until crumbly or use a pastry blender to cut butter into brown sugar and flour until crumbly.

 Mix in nuts. Sprinkle topping mixture over sweet potatoes. At this point, dish can be refrigerated, covered. 

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