Giant Peanut Butter Ice Cream Sandwich

Preheat oven to 350°. Let dough stand at room temperature 5-10 minutes to soften. Press into two ungreased 9-in. springform pans; sprinkle with graham cracker crumbs. Bake 20-25 minutes or until set. Cool completely. 
In a large bowl, whisk milk, cream and pudding mix 2 minutes. Let stand 2 minutes or until soft-set. In another large bowl, beat cream cheese and peanut butter until smooth. Add pudding and ice cream; beat until smooth. 
Spread over one cookie crust. Remove sides of second pan; place crust, crumb side down, over filling. Wrap in plastic; freeze on a baking sheet 4 hours or until firm. 
Remove from freezer 15 minutes before serving. Place Nutella in a small microwave-safe bowl; cover and microwave at 50% power 1-2 minutes or until smooth, stirring twice. Remove sides of pan; cut dessert into slices. Drizzle with Nutella.