2 1/4 cups all purpose flour
1 teaspoon baking powder
1/4 teaspoon salt
3/4 cup butter, melted
2 1/4 cups brown sugar
3 eggs
1 1/2 teaspoons vanilla
4 Butterfinger candy bars, crushed

In small bowl, combine flour, baking powder and salt; set aside.

In medium bowl, with electric mixer at medium speed, combine margarine and brown sugar; beat in eggs and vanilla until smooth. Stir in flour mixture and 1 cup crushed Butterfinger bars.

Spread in greased 13 x 9 x 9 inch baking pan. Sprinkle remaining crushed Butterfinger bars over top of batter.

Bake at 350 F for 30 to 35 minutes, or until done. Cool; cut into bars.