1 cup dark chocolate, or semisweet chocolate chips (or a combination of the two)
cooking spray
Instructions
Preheat the oven to 350 degrees. Spray a 9 x 13-inch glass baking dish with cooking spray.
In a large bowl, mix together the butter, sugar, salt, and vanilla. Add the sifted flour and stir to combine. Mix in the walnuts and chocolate chips.
Add the dough to glass baking dish and press the dough into the prepared pan. Bake until golden and set, about 20 minutes. Cut into small squares while still warm.
Recipe by 2 Sisters 2 Cities at https://www.2sisters2cities.com/2012/12/ten-crisp-toffee-chocolate-bars/