Step 1

Start by preheating your oven to 350°F (175°C) and line a baking sheet with parchment paper for easy cleanup.

Step 2

In a large mixing bowl, combine 1 cup of softened butter, 1 cup of granulated sugar, and 1 cup of packed brown sugar. Using a hand mixer or stand mixer, beat the mixture until it becomes light and fluffy—this will take about 2-3 minutes.

Step 3

Add 2 large eggs, one at a time, to the butter and sugar mixture, beating well after each addition. Then, mix in 1 teaspoon of vanilla extract for that extra touch of flavor.

Step 4

Next, add 1 cup of creamy peanut butter and beat until the mixture is smooth and fully combined. Make sure to scrape down the sides of the bowl to ensure everything is mixed evenly.

Step 5

In a separate bowl, whisk together 2 1/2 cups of all-purpose flour, 1 teaspoon of baking soda, and 1/2 teaspoon of salt. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix!

Step 6

Gently fold in 2 cups of chopped Butterfinger candy bars, making sure the pieces are evenly distributed throughout the dough. This step ensures that each cookie is packed with delicious Butterfinger crunch.

Step 7

Using a cookie scoop or tablespoon, scoop out portions of dough onto your prepared baking sheet. Place them about 2 inches apart, as the cookies will spread during baking. Bake in the preheated oven for 10-12 minutes, or until the edges are golden brown. The centers may still look soft, but they will firm up as they cool.

Step 8

Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. Enjoy warm, or store them in an airtight container for later!