In a medium bowl, mix together graham cracker crumbs, 1/4 cup brown sugar, and 1/3 cup melted butter. Press into the bottom of an ungreased 9x13 inch pan.
Bake for 8 to 10 minutes in preheated oven. In a saucepan, combine 1/2 cup butter and 1/2 cup brown sugar. Cook over moderate heat, stirring constantly, until mixture comes to a boil; boil for 1 minute. Pour immediately over baked cookie base.
Bake for 10 more minutes. Remove from oven, and sprinkle with chocolate chips. Let stand for 2 to 3 minutes, until chips are shiny and soft. Spread the softened chocolate evenly over the top. Sprinkle with chopped nuts. Cool before cutting into bars.
recipeler.comchocolate toffee crunch bars, Chocolate Cookies recipePT10MPT2H6435 calories