Toffee bars with a modern version that features a dark chocolate topping, toasted walnuts, and a sprinkling of flaked sea salt. This recipe for Sea Salt Toffee Bars will be a favorite cookie for cookie trays and gift giving. I used the same cookie base as my recipe for traditional Toffee Bars since there seemed no reason to change an already perfect tasting cookie base. I used a dark bittersweet chocolate with 72% cacao from Trader Joes, I think their chocolate is exceptional and wonderful to use for baking. While searching for flaked sea salt I found Maldon Sea Salt Flakes at my local Whole Foods market. Flaked sea salt gives a beautiful presentation and slight crunch. I use salt sparingly as it doesn’t take much to make a difference. I used ½ teaspoon in this recipe but you can use more or less depending on your taste.