With all the flavors of those expensive dark chocolate caramels but a third of the effort, these dark chocolate caramel shortbread bars are a perfect addition to your holiday cookie tray.
Remove from heat and whisk for about 3 minutes. Pour caramel over warm crust. Chill until caramel is firm.
Chill in the refrigerator. Cut into small triangles. Sprinkle each square with sea salt (optional--I use Maldon sea salt).