Step 1

Preheat oven to 350 degrees. Line insulated baking sheets with parchment paper or a silicone baking mat.

Step 2

Sift flours, baking soda, baking powder and salt into a bowl with a wire whisk. Set aside.

Step 3

In bowl of electric mixer, cream together butter and sugars until very light, about five minutes. Add eggs, one at a time, mixing well after each addition. Stir in the vanilla.

Step 4

With mixer on low, add dry ingredients and mix just until combined. Stir in Butterfinger baking bits with rubber spatula.

Step 5

Scoop dough into balls using an ice cream scoop onto sheet. Bake 14-19 minutes.

Step 6

As soon as you remove the baking sheet from the oven, use a spatula to shape the outer edge of the cookies to make them nice, round, and even.

Step 7

Allow cookies to cool on sheet for 5 minutes before transferring to cooling racks to cool completely.