1 1/2 cups all purpose flour
1/2 cup packed brown sugar
1/2 cup cold butter cubed

In a small bowl, combine the flour and sugar. Cut in the butter until crumbly. Press into a greased 9 x 13 pan and bake for 10-15 minutes until golden.

In a large bowl combine:

3 eggs
3/4 cup white sugar
3.4 cup corn syrup
2 T. butter melted
1 t. vanilla extract
1 3/4 cups semisweet chocolate chunks
1 1/2 cups chopped pecans

Blend well and pour over crust. Bake for 20-25 minutes until set. Cool completely and cut into bars.