Ingredients
1-1/2 cups all-purpose flour3/4 cup packed brown sugar3/4 cup butter, softened1 large egg yolk3/4 teaspoon vanilla extractFILLING:1 package fudge brownie mix (13-inch x 9-inch pan size)1 large egg1/3 cup water1/3 cup canola oilTOPPING:1 package (11-1/2 ounces) milk chocolate chips, melted3/4 cup chopped walnuts, toasted
Preparation
In a large bowl, combine the first five ingredients. Press onto the bottom of a greased 15x10x1-in. baking pan. Bake at 350° for 15-18 minutes or until golden brown.
Meanwhile, in a large bowl, combine the filling ingredients. Spread over hot crust. Bake for 15 minutes or until set. Cool on a wire rack for 30 minutes.
Spread melted chocolate over filling; sprinkle with walnuts. Cool completely. Cut into bars.
