- Do not skip browning butter. The brown butter gives a rich, toasty flavor.
- Instead of using dark chocolate to drizzle the cookie bars, you can use white chocolate or caramel sauce.
- For some extra flavor, add chopped caramel candies into the batter.
- Make sure your cookie dough is not overbaked – the edges should be slightly crisp but with a chewy center. Start checking the cookie dough at the 18-minute mark. You can bake these for 18-22 minutes.
