1 pkg. yellow cake mix
1 egg
1/3 c. butter

FILLING:

1 can sweetened condensed milk
1 tbsp. vanilla
1 bag Heath Bits O'Brickle chips
1 c. chopped pecans

Combine cake mix, egg and butter until crumbly. Press into greased 9x13 inch pan.

Combine filling ingredients and mix well. Spread to cover base. Bake 25-35 minutes at 350 degrees until light golden brown. Do not over bake.