Combine sugar, salt, butter, milk and boil 6-8 minutes.
Photo by Sue York/ladailypost.com
Pour boiling syrup over green mint chocolate and marshmallow cream in a large bowl, beat until chocolate is all melted.
Pour into buttered pan (10x15x1). Cool for about 15 minutes. Sprinkle the peppermint crunch on top and press in lightly. Cool until firm.