Pecan Pie Surprise bars

CRUST
1 pkg yellow cake mix (reserve 2/3 cup)
1/2 butter or margarine melted
1 egg

Grease bottom and sides of 9x13 pan. Combine above ingredients until crumbly. Press into pan. Bake @ 350 for 15-20 minutes or until light brown. Remove from oven.

FILLING
2/3 cup reserved cake mix
1/2 cup packed brown sugar
1 tsp vanilla
1 cup chopped pecans
3 eggs
1 1/2 cups dark corn syrup

Mix all ingredients, pour over crust. Return to oven and bake for 30-35 minutes until filling is set. cool and cut into squares.