If you’re a fan of that irresistible combination of chocolate and peanut butter, then you’re in for a treat! These Butterfinger Bars are a delightful twist on the classic candy bar, merging the crunchy texture of Butterfinger pieces with a creamy, peanut butter filling and a melt-in-your-mouth cookie crust. Perfect for sharing or indulging in solo, these bars are sure to satisfy your sweet tooth. Let’s dive into the details of making these heavenly treats!
Why I Love This Recipe

What I adore about this Butterfinger Bars recipe is its simplicity and the nostalgic flavors it brings to the table. The combination of buttery cookie base, creamy peanut butter filling, and crunchy Butterfinger bits creates a symphony of textures and flavors that is utterly addictive. Whether you’re baking for a special occasion or just because, these bars will impress everyone who gets a taste. Plus, they’re incredibly easy to whip up, making them a go-to dessert for any home baker.
What You’ll Gather
- 1 cup butter – This is the foundation of our cookie crust, adding richness and flavor.
- 1 cup light brown sugar – For that deep sweetness and hint of caramel flavor.
- 1/2 cup granulated sugar – Balances the brown sugar and adds a nice sweetness.
- 1/2 teaspoon vanilla extract – Enhances the overall flavor.
- 2 large eggs – Binds the ingredients together and adds moisture.
- 2 1/2 cups all-purpose flour – The main structure of your cookie base.
- 1 teaspoon baking soda – Helps the bars rise and gives them a nice texture.
- 1/2 teaspoon salt – Balances the sweetness of the bars.
- 2 cups Butterfinger Bars – About 15 fun-sized bars, coarsely chopped for that crunchy goodness.
- 3/4 cup creamy peanut butter – The star of the filling, rich and smooth.
- 1/2 cup butter, softened – For the filling, providing that creamy texture.
- 1/2 teaspoon vanilla extract – Again, for that lovely flavor boost.
- 1 1/2 cups powdered sugar – Sweetens the peanut butter filling.
- 1-2 tablespoons milk – Adjusts the consistency of the filling.
- 1/2 cup chopped Butterfinger bits – About 4 fun-sized bars, for an extra crunch on top.
Hardware & Gadgets
- Mixing Bowls – Essential for combining your ingredients.
- Electric Mixer – Makes creaming the butter and sugars a breeze.
- 9×13-inch Baking Dish – Perfect for baking the bars evenly.
- Measuring Cups and Spoons – For accurate ingredient measurements.
- Spatula – Handy for spreading the filling and scraping down the bowls.
Butterfinger Bars — Do This Next

1. Preheat the Oven
Preheat your oven to 350°F (175°C) and grease your 9×13-inch baking dish or line it with parchment paper for easy removal.
2. Make the Cookie Base
In a large mixing bowl, cream together the 1 cup butter, 1 cup light brown sugar, and 1/2 cup granulated sugar until light and fluffy. This should take about 2-3 minutes with an electric mixer. Add in the 1/2 teaspoon vanilla extract and the 2 large eggs, mixing until well combined.
3. Combine Dry Ingredients
In another bowl, whisk together the 2 1/2 cups all-purpose flour, 1 teaspoon baking soda, and 1/2 teaspoon salt. Gradually add the dry mixture to the wet ingredients, mixing until just combined. Be careful not to over-mix.
4. Fold in Butterfinger Chunks
Gently fold in the 2 cups chopped Butterfinger Bars, ensuring they are evenly distributed throughout the dough.
5. Bake the Cookie Base
Spread the cookie dough evenly in the prepared baking dish. Bake in the preheated oven for 20-25 minutes or until the edges are lightly golden and a toothpick inserted in the center comes out clean. Allow the base to cool completely in the pan.
6. Prepare the Peanut Butter Filling
In a clean mixing bowl, combine 3/4 cup creamy peanut butter and 1/2 cup softened butter. Mix until smooth. Gradually add in the 1/2 cup powdered sugar and 1/2 teaspoon vanilla extract, mixing until well combined. If the mixture is too thick, add 1-2 tablespoons milk until you reach a spreadable consistency.
7. Assemble the Bars
Once the cookie base has cooled, spread the peanut butter filling evenly over the top. Sprinkle the 1/2 cup chopped Butterfinger bits on top for an added crunch.
8. Chill and Cut
Refrigerate the assembled bars for at least 30 minutes to set the filling. Once set, cut into squares and serve. Enjoy your delicious Butterfinger Bars!
Better Choices & Swaps

- Nut Butters: Swap creamy peanut butter for almond or cashew butter for a different flavor profile.
- Flour: Use whole wheat flour for a healthier alternative, though it may change the texture slightly.
- Sugar: Try using coconut sugar instead of brown and granulated sugar for a lower glycemic index option.
Frequent Missteps to Avoid
- Overmixing the dough can lead to tough bars. Mix until just combined.
- Not allowing the cookie base to cool completely can cause the peanut butter filling to melt and mix in.
- Substituting ingredients without considering their properties can lead to unexpected textures and flavors.
Freezer-Friendly Notes
These Butterfinger Bars are freezer-friendly! Once cut, place them in an airtight container separated by parchment paper to prevent sticking. They can be stored in the freezer for up to three months. Thaw in the fridge or at room temperature before enjoying.
Quick Questions
Can I use crunchy peanut butter instead of creamy?
Absolutely! Crunchy peanut butter will add extra texture to the filling, making your Butterfinger Bars even more delightful.
How should I store leftover bars?
Store the bars in an airtight container at room temperature for up to a week, or refrigerate them for longer freshness.
Can I add chocolate to the top?
Definitely! Drizzling melted chocolate over the top before chilling adds a delicious layer of chocolatey goodness.
What if I don’t have Butterfinger Bars?
You can substitute them with any crispy chocolate-covered candy bars for a similar effect, such as Reese’s or Crunch bars.
Save & Share
If you enjoyed making these Butterfinger Bars, be sure to share your creations on social media! Tag your friends and family and let them in on the secret of these delectable treats. The joy of baking is even sweeter when shared!
These Butterfinger Bars are not just a dessert; they’re an experience. The combination of flavors and textures makes every bite a little piece of heaven. Whether you’re indulging after a long day or celebrating a special occasion, these bars are sure to bring a smile to your face and joy to your taste buds. Happy baking!

Butterfinger Bars
Ingredients
For the Cookie Base:
- 1 cup butter
- 1 cup light brown sugar
- 1/2 cup granulated sugar
- 1/2 teaspoon vanilla extract
- 2 large eggs
- 2 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 cups Butterfinger Bars coarsely chopped
For the Peanut Butter Filling:
- 3/4 cup creamy peanut butter
- 1/2 cup butter softened
- 1/2 teaspoon vanilla extract
- 1 1/2 cups powdered sugar
- 1-2 tablespoons milk to adjust consistency
- 1/2 cup chopped Butterfinger bits about 4 fun-sized bars
Instructions
Directions
- Preheat your oven to 350°F (175°C) and grease your 9x13-inch baking dish or line it with parchment paper for easy removal.
- In a large mixing bowl, cream together the 1 cup butter, 1 cup light brown sugar, and 1/2 cup granulated sugar until light and fluffy, about 2-3 minutes with an electric mixer. Add in the 1/2 teaspoon vanilla extract and 2 large eggs, mixing until well combined.
- In another bowl, whisk together the 2 1/2 cups all-purpose flour, 1 teaspoon baking soda, and 1/2 teaspoon salt. Gradually add the dry mixture to the wet ingredients, mixing until just combined.
- Gently fold in the 2 cups chopped Butterfinger Bars until evenly distributed throughout the dough.
- Spread the cookie dough evenly in the prepared baking dish. Bake for 20-25 minutes or until the edges are lightly golden and a toothpick inserted in the center comes out clean. Allow the base to cool completely in the pan.
- In a clean mixing bowl, combine 3/4 cup creamy peanut butter and 1/2 cup softened butter. Mix until smooth. Gradually add in the 1/2 cup powdered sugar and 1/2 teaspoon vanilla extract, mixing until well combined. If the mixture is too thick, add 1-2 tablespoons milk until you reach a spreadable consistency.
- Once the cookie base has cooled, spread the peanut butter filling evenly over the top. Sprinkle the 1/2 cup chopped Butterfinger bits on top for added crunch.
- Refrigerate the assembled bars for at least 30 minutes to set the filling. Once set, cut into squares and serve.
Equipment
- Mixing bowls
- Electric Mixer
- 9x13 inch Baking Dish
- Measuring cups and spoons
- Spatula
Notes
- These bars are freezer-friendly! Store them in an airtight container separated by parchment paper for up to three months.
- For a different flavor, try swapping creamy peanut butter for almond or cashew butter.
- Don’t skip chilling the bars; it helps the filling set perfectly!
