2 c. all purpose flour
1 c. packed light brown sugar
1/2 c. butter (1 stick)
1 c. pecan halves
Toffee Topping
1 c. Hershey milk chocolate chips

Heat oven to 350 degrees. In large mixer bowl, combine flour, brown sugar and butter, mix until fine crumbs form (a few large crumbs may remain). Press into ungreased 13 x 9 x 2 inch baking pan. Sprinkle pecans over crust. Prepare Toffee Topping; drizzle evenly over pecans and crust. Bake 20-22 minutes or until topping is bubbly and golden; remove from oven. Immediately sprinkle milk chocolate chips over top; press gently onto surface. Cool completely in pan on wire rack. Cut into bars, about 3 dozen bars.

TOFFEE TOPPING:

In small saucepan, over medium heat, combine 2/3 cup butter and 1/3 cup packed light brown sugar, cook, stirring constantly, until mixture comes to a boil. Continue boiling, stirring constantly, 30 seconds; use immediately.