Preheat the oven to 350 degrees F.
Spread the cookie dough out on a cookie sheet to 1/4-inch thickness (about 9 inches by 12 inches) using your fingertips. Bake for 25 minutes. Let cool.
Spread the marmalade over the cookie. Sprinkle with nuts.
In a double boiler over very lightly simmering water, melt the chocolate. Dip a spoon in the melted chocolate and drizzle on top of the cookie. Let cool. Cut the cookie into 12 bars or squares. Serve or store in an airtight container.
Recipe courtesy of Giada De Laurentiis