Mix:

1 lb. butter
1 lb. brown sugar
2 eggs
1 tsp. vanilla

Add:

6 c. flour
2 tsp. baking soda

Stir in:

2 c. pecans, chopped

Finally: Form into rolls - refrigerate overnight, slice and bake at 350 degrees for 10-12 minutes.

Extra tip from Grandma: "Bag cookies up and pass them out to relatives when they visit - it keeps them coming back!"