1 pkg. Lorna Doone cookies (crushed)
1 stick butter

FILLING:

2 sm. pkgs. instant pudding
2 c. milk
1 qt. vanilla ice cream (softened)
1 lg. container Cool Whip
3 Heath bars

Mix butter with cookie crumbs and pat into 9 x 13 pan. Bake at 325 degrees for 15 minutes. Cool. Beat filling ingredients until smooth and pour over baked crust. Spread one large container Cool Whip over top. Sprinkle 3 crushed Heath bars on top. Chill.