Icebox Cake

Whip 3 cups of cream with 3 tablespoons sugar and the vanilla until soft peaks form.

In a 9-by-9-inch cake pan with a removable bottom, spread a layer of whipped cream. Top with a layer of cookies. Continue layering cream and cookies, finishing with a layer of cream, until all the cookies are incorporated. Cover with plastic wrap, and refrigerate for at least 4 hours and up to overnight.

Whip remaining 1 1/2 cups cream with remaining tablespoon sugar until soft peaks form. Transfer to a pastry bag fitted with a large star tip. Remove cake from refrigerator, and unmold. Pipe whipped cream over top and sides. Garnish with chocolate curls. Serve immediately.