Butterfinger Fudge Cookie Bars – easy homemade fudge layered between a graham cracker crust and chewy Butterfinger peanut butter cookies. Super easy to make with only a few simple ingredients. Graham crackers, melted butter, crushed Butterfinger candy bars, sweetened condensed milk, chocolate chips, peanut butter chips, peanut butter cookie dough. Great for potlucks, bake sales, and the holidays.

stack of 2 cookie fudge bars with text overlay

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Fudge Filled Cookie Bars

These Butterfinger Fudge Cookie Bars have quickly become a favorite at our house. Peanut butter and chocolate fudge layered between a graham cracker crust and Butterfinger peanut butter cookies. SO good! I am not a fan of plain fudge, but I am obsessed with these decadent fudge bars! My favorite way to eat them is crumbled up with a large bowl of vanilla ice cream. O-M-YUM! They are equally delicious with a tall glass of milk. You must whip up a batch ASAP!

How to Make Butterfinger Fudge Cookie Bars

These bars are very easy to make with a few simple ingredients. Start with making the graham cracker crust. Mix together graham cracker crumbs, crushed Butterfinger candy bars, and melted butter. Press into the bottom of a 9×13-inch cake pan sprayed with cooking spray and set aside. In a medium saucepan over medium heat, melt unsalted butter, chocolate chips, peanut butter baking chips, and sweetened condensed milk; stirring until smooth. Remove from heat and stir in vanilla extract. Pour the fudge mixture over the graham cracker crust. Break up packages of peanut butter cookie dough and drop it on top of the fudge layer. Sprinkle with crushed Butterfinger candy bars and bake in the oven. Cool the bars and refrigerate a few hours before cutting into bars.

Tips & Frequently Asked Questions

I like to line the pan with parchment paper or aluminum foil with a 2-inch overhang. This makes it easier to get the bars out of the baking dish.
I used Pillsbury Peanut Butter Cookie Dough. You can use any flavor of cookie dough that you prefer. Sugar cookie dough or chocolate chip cookie dough also works great in this recipe too.
I used a bag of Butterfinger baking bits. They are basically crushed Butterfinger candy bars. You can substitute 4 or 5 crushed candy bars for the baking bits.
You can use homemade cookie dough if you prefer.
- Here is our recipe for Homemade Peanut Butter Cookie Dough: https://www.plainchicken.com/lunch-lady-peanut-butter-cookies/
For the graham cracker crumbs, I used a box of Keebler Graham Cracker Crumbs. You can also make your own. I suggest crushing them in a food processor.
These bars are best if they have been refrigerated for a few hours. This gives the fudge layer time to set up.
These bars are very rich. I suggest cutting them into small squares.
Store the bars in an airtight container either in the refrigerator or on the countertop at room temperature. The bars will keep 3 to 5 days.

Easy Dessert for a Crowd

The bars are a favorite any time of the year. I made several batches for family and friends during the holidays. Everyone LOVES them! Chewy peanut butter cookies layered with fudge and graham cracker crust. I mean, what’s not to like? You can cut the cookie bars into as many squares as you prefer. This dessert is great for parties and potlucks. You must make this recipe ASAP. I promise you won’t be disappointed!

Pie