60 Ritz crackers, make crumbs (reserve some for top)
1 stick butter (melted)

Mix together and pat into bottom of 9x13 pan.

Mix together in large bowl: 1 1/2 c. milk 1 qt. butter pecan ice cream, softened

Pour over crust and top with one container of Cool Whip. Sprinkle with reserved Ritz cracker crumbs.