This butterscotch pudding is made from scratch with dark brown sugar for a deep, toffee-like flavor and a creamy, velvety taste. The cookie bark adds amazing textural contrast, making this an irresistible treat. To prepare the cookie bark, preheat oven to 350°F (175°C). Break into small pieces of bark to garnish the pudding or into larger pieces to serve alongside the pudding. This cookie bark freezes well.