Dirt Salad
["1 (15 oz.) pkg. Oreo cookies", "1/3 c. butter, melted", "2 (3 oz.) pkg. instant pistachio or vanilla pudding mix", "1 1/2 c. milk", "1 qt. vanilla ice cream, softened", "2 drops green food coloring (optional)", "8 oz. frozen whipped topping, thawed"]
["Put melted butter in 9 x 13-inch pan.", "Crush all but 6 cookies, put in pan and spread and pat firmly.", "Mix milk, pudding mix and food coloring for 3 to 4 minutes until thickened.", "Add ice cream. Stir until smooth., Pour over cookies.", "Spread whipped topping on ice cream mixture.", "Crush remaining cookies and sprinkle on top. Refrigerate."]
["Oreo cookies", "butter", "pistachio", "milk", "vanilla ice cream", "coloring", "frozen whipped topping"]