Nutter Butter Cookie Bars

Nutter Butter Cookie Bars

If you love peanut butter desserts, these Nutter Butter Cookie Bars are about to become your new favorite treat. They’re soft, chewy, and loaded with crushed Nutter Butter cookies, peanut butter chocolate chips, and buttery cookie chunks baked right on top. Every bite is sweet, nostalgic, and packed with rich peanut butter flavor.

The weather keeps getting colder, and baking definitely adds some warmth. I love baking cookie bars because you can make them in one bowl (which limits the mess) and they’re very simple to make. These bars are loaded with creamy peanut butter and are a perfect treat for any occasion. I hope you enjoy this recipe!

Why You’ll Love These

• They’re incredibly soft, chewy, and peanut buttery, with the perfect balance of crunch from the cookie topping.

• Easy, one-bowl recipe, no mixer needed!

• Packed with real Nutter Butter cookies inside and on top for maximum flavor.

• They slice beautifully and make the perfect treat for sharing.

• Ready in under an hour from start to finish.

What You’ll Need

• Salted butter

• Brown sugar

• Peanut butter

• Eggs

• Vanilla extract

• All-purpose flour

• Peanut butter chocolate chips

• Nutter Butter cookies

• Baking powder

• Salt

Before You Start

• Let the melted butter cool slightly so it doesn’t scramble the eggs.

• Crush the Nutter Butters two ways: fine crumbs for mixing in, larger chunks for topping.

• Don’t overmix the batter after adding the flour; this keeps the bars soft and tender.

• Use parchment paper so you can lift the bars out cleanly for easy slicing.

Helpful Tips

• For extra flavor, drizzle melted peanut butter over the cooled bars.

• Want thicker bars? Use an 8x8 pan and add 3–5 extra minutes of bake time.

• If the tops brown too quickly, loose foil over the pan during the last 10 minutes.

• For neater slices, cool the bars fully or chill briefly before cutting.

Storage Instructions

Store leftover bars in an airtight container at room temperature for 3–4 days.
For longer storage, refrigerate for up to one week, or freeze for up to 2 months.
To serve frozen bars, thaw at room temperature or warm in the microwave for 10 seconds.

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I hope these Nutter Butter Cookie Bars bring as much joy to your kitchen as they did to mine. They’re simple, comforting, and packed with that nostalgic peanut butter flavor we all love. If you give this recipe a try, I’d love to hear how it turned out for you. Leave a comment below or tag me on social so I can see your delicious creations. Happy baking!

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Nutter Butter Cookie Bars

Yield: 16

Author: Jaegar Desjardin

Prep time: 15 MinCook time: 30 MinTotal time: 45 Min

These Nutter Butter Cookie Bars are soft, chewy, and packed with peanut buttery goodness, thanks to crushed Nutter Butter cookies baked right into every bite.

Ingredients

• ½ cup Salted Butter (melted)
• 1 cup Brown Sugar
• 1/2 cup peanut butter
• 2 Eggs (room temperature)
• 1 tbsp Vanilla Extract
• 1 cup of All-Purpose Flour
• 1/2 cup Peanut Butter Chocolate Chips, plus a few extra for topping.
• 16 Nutter Butter Cookies, 1 cup crushed for filling (about 10) and 6 for topping.
• ¼ tsp of Baking Powder
• ½ tsp Salt

Instructions

1. Preheat the oven to 350°F and line a 9x9-inch pan with parchment paper.
2. Melt the ½ cup of butter and allow it to cool slightly. While the butter cools, crush 10 of the Nutter Butter Cookies. I use a Ziplock bag and a rolling pin to crush them. You can also use a blender or any other method. Set those aside, then take the additional 6 Nutter Butters and break them by hand to have bigger broken chunks for topping, and set those aside.
3. Add the melted butter, brown sugar, and peanut butter to a mixing bowl and mix with a spatula until combined.
4. Add the eggs and vanilla extract and mix until just combined.
5. Use a spatula to scrape down the sides and add the flour, baking powder, and salt. Fold the ingredients together until no clumps of flour remain without overmixing.
6. Next, add the crushed Nutter Butters and peanut butter chocolate chips and incorporate them into the dough. Then add the batter to the baking pan. Once in the pan, take the hand-broken Nutter Butters and place them on the top layer of the blondie mixture throughout the entire top.
7. Bake for 30-35 minutes or until the edges are golden brown. (Optional) When out of the oven, carefully top with extra peanut butter chips.

Equipment

1. 9x9 baking pan
2. Parchment paper
3. Wire rack
4. Spatula
5. Bowl