Triple Chocolate Dessert

I got this recipe from my mother in law a way long time ago. It is absolutely scrumptious. You can't go wrong serving this for dessert. It's also quick and easy. You can't beat that.

Bottom layer:
1 stick butter
1 cup chopped nuts
1 cup flour
Mix with mixer. Pat into 9 x 13 pan and bake 15-20 minutes at 350 degrees.
Second layer:
1 package cream cheese 8 ounce, softened
1 cup Cool Whip
1 cup powdered sugar
Mix and spread over first layer.
Third layer:
1 package vanilla instant pudding mix, 4 serving size
1 package chocolate instant pudding mix, 6 serving size
4 cups milk
Beat together. Spread onto second layer.
Top with Cool Whip.
Sprinkle chopped nuts over the top for garnish.
Refrigerate for at least 15 minutes.