Set oven to 350°. Prepare cake as directed on box in a 9 x 13-inch pan. Bake for 31 to 35 minutes or until a toothpick inserted comes out clean. After cake is done and still warm, poke holes throughout the cake with a knife and spread the prepared pudding over the top. The pudding will soak into the cake making it super moist. Top with whipped topping and refrigerate immediately.
Laura Russman, Portland