CRUST:

1 c. flour
1 stick softened butter
1/2 c. chopped nuts

Mix ingredients by hand and spread in a 9x13 pan. Bake until a light golden brown at 350 degrees for about 15 minutes.

FIRST LAYER (filling) :

Beat 1 (8 ounce) package cream cheese together with 1/2 cup powdered sugar and 1/2 carton of Cool whip (or any brand dairy whip topping) and spread this mixture on top of the cooled crust.

SECOND LAYER (filling) :

Mix 2 packages of Royal Instant Pistachio Pudding with 3 cups of milk. It will start to thicken after about a minute or so. Pour this mixture on top of first layer.

TOP LAYER (filling) :

Spread the rest of the carton of Cool Whip on top and let set in refrigerator for an hour or so.