Preheat oven to 350° F.

In large mixing bowl cream sugars and butter.

Add vanilla and eggs to creamed mixture and combine.

Add dry ingredients, flour, salt and baking soda to mixture until just combined.

Stir in chopped/crushed Butterfingers.

Spread blondie mixture in a 9x13 baking dish and place in oven. Bake for 25 minutes until the center is cooked through.

Remove blondies from the oven and let cool.

In a small bowl using a hand mixer, cream together the butter, vanilla and milk until the mixture is smooth.

Slowly add in powdered sugar and continue to mix on low until completely incorporated. Mix frosting on medium speed until smooth.

Spread frosting over cooled blondies in pan and sprinkle with chopped/crushed Butterfinger pieces and enjoy!