Four Layer Chocolate Delight

I've made this a lot for church suppers. It is always a hit!

Layer 1:
3 cups Graham cracker crumbs
1/2 cup sugar
1 cup butter, melted

Layer 2:
16 oz cream cheese, softened
1/2 sugar
4 T milk
4 cups cool whip

Layer 3:
6 cups chocolate pudding

Layer 4: (optional)
cool whip and sprinkle of cracker crumbs or nuts and chocolate chips

That is the recipe I have... no instructions. So, I'll add these instructions for the beginners that have never fixed a recipe like this.

Mix the ingredients for layer 1 and press into the bottom of a 13x9 pan. Mix the ingredients for layer 2. With a hand mixer, blend until smooth. Pour on top of the crust. Layer pudding next. Top with cool whip and sprinkle with toppings of your choice.