Prepare brownies according to package directions. Prior to placing into pan, stir in Kraft Caramel Bits. Spread brownies in pan and top with a dusting of sea salt. Bake according to package directions. Immediately upon removing from the oven, sprinkle both chocolate chips and caramel chips over the top of the brownies, allowing chips to slightly melt. Serve warm or cooled. For more caramel flavor, drizzle with caramel sauce just before serving. Enjoy!