Preheat oven to 350 degrees. Cream butter, sugars, salt and egg yolk until smooth with electric mixer. Gradually beat in flour. Mix in toffee bits. Line a 13x9-inch baking pan with heavy-duty aluminum foil. Press dough evenly into bottom of baking pan. Sprinkle with pecans and press lightly into dough. Bake until lightly browned, 20 to 22 minutes. Cool. For icing, heat butter in small saucepan over low heat until browned (be careful not to burn). Remove from heat. Stir in confectioners' sugar, vanilla and enough milk to make a thin icing. Drizzle over cookie dough. Cut into bars to serve. Makes about 36 bars.

coated toffee bars (e.g., Heath bars). I found these recipes in the