Instructions

1. Mix flour, baking soda, and salt; set aside.
2. In large bowl with mixer at medium speed, beat butter and sugar until fluffy.
3. Slowly beat in corn syrup, then egg and vanilla. 
4. Beat in flour mixture until blended. 
5. Stir in pecans and half the chocolate chunks.
6. Spread evenly in ungreased 15-1/2- by 10-1/2- by 1-inch pan.
7. Sprinkle remaining chocolate on top.
8. Bake in 350 (F) oven 30 minutes or until lightly browned.
9. Cool on rack.
10. Cut into 2-1/2-inch squares.