Frozen Pistachio Dessert

2 cups graham wafer crumbs

1/4 cup melted butter

1 Tbsp sugar

8 cups (2 L) vanilla ice cream

1 Crispy Crunch chocolate bar

1 large container Cool Whip

2 pkg Instant pistachio pudding mix (6 serving size)

Mix crumbs, butter and sugar. Press into 9X13 inch pan. Soften the ice cream. When soft, add 250g. Cool Whip and pistachio pudding mix. Mix all together in a large bowl. Blend well and pour over crumb base. Crumble Crispy Crunch chocolate bar and sprinkle over top. Put in freezer until firm.