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    Home » Recipes » Recipes

    The BEST Nutter Butter Bars 

    Published: Sep 26, 2023 by Cara Lanz · As an Amazon Associate I earn from qualifying purchases.

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    Nutter Butter bars on a white countertop.
    A Nutter Butter bar drizzled with peanut butter on a white plate.
    A Nutter Butter bar drizzled with peanut butter on a white plate.
    Metal spatula holding up a Nutter Butter bar.

    Nutter Butter Bars have a thick Nutter Butter crust, sweet peanut butter filling, peanut butter chips, roasted peanuts, Nutter Butters, Reese's Pieces, and a peanut butter drizzle. For die-hard peanut butter lovers only!

    A Nutter Butter bar drizzled with peanut butter on a white plate.

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    Jump to:
    • What is in Nutter Butter Cookie Bars? 
    • Why You're Going to Love These
    • Ingredients
    • How to Make Nutter Butter Bars 
    • Storage
    • Expert Tips
    • FAQs
    • More Peanut Butter Recipes
    • 💌Let's Stay in Touch
    • 📖 Recipe

    I have a very deep and profound love of layer bars: Hello Dolly Bars, Magic Pumpkin Bars, Blueberry White Chocolate Magic Bars, Carrot Cake Mix Bars, Dream Bars... I love them all. 

    But these amazing Nutter Butter bars just might be my favorite. 

    The Nutter Butter crust is thick and buttery, the creamy peanut butter condensed milk layer is decadent and gooey, and the chopped cookies and Reese's Pieces add crunchy texture. 

    And they just ooze peanut butter flavor because it's in every. single. layer. of these peanut butter cookie bars. 

    What is in Nutter Butter Cookie Bars? 

    When I say these peanut butter bars are loaded with peanut butter, I am not kidding. Let me break down the layers for you: 

    Metal spatula holding up a Nutter Butter bar.
    • ​Layer 1: Nutter Butter cookie crust
    • Layer 2: Peanut butter chips and roasted peanuts
    • Layer 3: Peanut butter and sweetened condensed milk
    • Layer 4: Chopped Nutter Butter cookies and Reese's Pieces
    • Layer 5: Melted peanut butter drizzle

    See what I mean? 

    There's creamy peanut butter in TWO layers, peanut butter chips, Reese's Pieces, and 44 Nutter Butter cookies (more than a whole family pack!) all in one pan of Nutter Butter bars. 

    Whew!

    Why You're Going to Love These

    • Fast and easy peanut butter cookie bar recipe -- bakes in about 30 minutes
    • Ultimate peanut butter dessert recipe for pb lovers! 
    • So many layers of peanut butter goodness in one delicious dessert

    Ingredients

    Nutter Butter bar ingredients.

    Please refer to the recipe card for the full list of ingredients. 

    Nutter Butter cookies. You'll need 44 Nutter Butters for this recipe -- so grab a couple of packages. 

    Brown sugar. Sugar helps hold the cookie crust together because it melts in the oven then cools and hardens. The molasses in the brown sugar also adds rich flavor. 

    Creamy peanut butter. Peanut butter is mixed with the sweetened condensed layer AND drizzled on top of the bars, ensuring there is peanut butter in every single layer of these bars. 

    Peanut butter chips. If you want, you can swap out half of the peanut butter chips for chocolate chips or white chocolate chips. 

    Dry roasted peanuts. Use any kind of nut you like and have -- almonds, pecans, walnuts ... no wrong answers. 

    Flaky sea salt. Salt enhances the peanut butter flavors and balances the sweetness. Flaky sea salt also adds crunchiness and pretty crystals. It can be added before or after baking, as it won't absorb during baking. You can also use coarse sea salt, which should be added after baking -- I would put it over the peanut butter drizzle. 

    How to Make Nutter Butter Bars 

    1.  Make the Nutter Butter cookie crust. 

    With a food processor, blender, or rolling pin and ziploc bag, crush 32 Nutter Butter cookies into 4 cups of fine crumbs. 

    Combine the cookie crumbs, brown sugar, and salt in a large mixing bowl. Add the melted butter and stir until the crumbs are moistened. 

    Press the crumbs into a 9 x 13 baking baking pan prepared with parchment paper or nonstick cooking spray. 

    Hand holding a glass pressing Nutter Butter crumbs into a pan.

    2. Make the peanut butter filling. 

    In a medium bowl, melt ¼ cup peanut butter in the microwave for about 30 seconds. Stir in the sweetened condensed milk. 

    Condensed milk pouring into a bowl with melted peanut butter.

    3. Assemble the bars.

    Sprinkle the peanut butter chips and peanuts on top of the Nutter Butter base. 

    Peanuts and peanut butter chips over Nutter Butter crust.

    Pour the peanut butter condensed milk mixture over the peanuts and peanut butter chips. 

    Peanut butter condensed milk layered over peanuts and peanut butter chips in a baking pan.

    Layer the chopped Nutter Butters and Reese's Pieces on top of the peanut butter filling.

    Use a fork or rubber spatula to gently press the toppings into the condensed milk mixture. 

    Top of unbaked Nutter Butter bars.

    Sprinkle with flaky sea salt, if desired. 

    4. Bake.

    Bake Nutter Butter bars for 30-35 minutes or until the edges are golden brown. Place on a wire rack to cool. Chill in the refrigerator. 

    5. Drizzle with peanut butter. 

    Melt 2 tablespoons of peanut butter in a small bowl in the microwave for about 15 seconds. Use a spoon to drizzle the peanut butter on top of the bars.

    Spoon drizzling peanut butter on top of Nutter Butter bars.

    Use a sharp knife to cut the bars into squares. 

    Serve and enjoy! 

    A Nutter Butter bar drizzled with peanut butter on a white plate.

    Storage

    Store Nutter Butter bars wrapped in plastic wrap or in an airtight container at room temperature for a couple of days or in the refrigerator for up to one week. 

    To freeze, place bars in a freezer-safe container between layers of parchment paper or wax paper for up to 3 months. 

    Expert Tips

    Adding sugar to a baked cookie crust helps hold it together and keep it from getting too crumbly. 

    Use a glass or flat-bottomed measuring cup to press the crust into the pan. 

    Lining the pan with parchment paper makes removing the bars from the pan super easy. 

    FAQs

    What kind of cookie is a Nutter Butter?

    Nutter Butters are peanut butter sandwich cookies made by Nabisco. They're shaped like peanuts, have a distinctive grid pattern, and are filled with a smooth creamy peanut butter filling. 

    How do I keep my crumb crust from crumbling? 

    To keep a crumb crust from crumbling, add enough butter to completely moisten the crumbs and some sugar. As the crust bakes, the sugar melts, and as it cools, the sugar hardens and helps hold the crust together. 

    ​Can you melt peanut butter to make it runny?

    Yes. When warmed, peanut butter becomes very thin making it easy to mix with other ingredients or drizzle on top of desserts.

    To melt peanut butter, place it in a microwave-safe dish and microwave in 15-second increments until it is runny. It will thicken again as it cools.

    Nutter Butter bars on a white countertop.

    More Peanut Butter Recipes

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      Peanut Butter Oreo Heavenly Dessert
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    📖 Recipe

    A Nutter Butter bar drizzled with peanut butter on a white plate.

    Nutter Butter Bars

    Cara Lanz
    This Nutter Butter Bars recipe is for peanut butter lovers only, with a buttery Nutter Butter crust, gooey peanut butter condensed milk filling, layers of peanut butter chips, roasted peanuts, chopped Nutter Butters, and Reese's Pieces, and a peanut butter drizzle. 
    5 from 3 votes
    Print Recipe Pin Recipe Save Recipe Saved Recipe!
    Prep Time 10 minutes mins
    Cook Time 30 minutes mins
    Course Dessert, Snack
    Cuisine American
    Servings 24
    Calories 334 kcal

    Ingredients
      

    Nutter Butter Crust

    • 32 Nutter Butter cookies approx. 4 cups crumbs
    • ½ cup melted butter
    • 2 tablespoons brown sugar
    • ¼ teaspoon salt

    Peanut Butter Filling

    • 1 can sweetened condensed milk 14 oz.
    • ¼ cup creamy peanut butter

    Toppings

    • 1 cup peanut butter chips
    • ½ cup roasted peanuts
    • 12 Nutter Butter cookies chopped
    • ¾ cup Reeses Pieces candy
    • flaky sea salt, optional
    • 2 tablespoons creamy peanut butter
    Prevent your screen from going dark

    Instructions
     

    • Preheat oven to 350. Line a 9 x 13 pan with parchment paper.
    • Make the Nutter Butter crust. Crush 32 Nutter Butter cookies into 4 cups of fine crumbs with a food processor, blender, or ziptop bag and rolling pin.
      Stir the cookie crumbs, brown sugar, and salt together in a large bowl. Add the melted butter and stir well.
      Use a glass or flat-bottomed measuring cup to press the crumbs into the prepared pan.
    • Make the filling. Melt the peanut butter in a medium microwave-safe bowl for about 30 seconds. Stir in the sweetened condensed milk until combined.
    • Assemble the Nutter Butter bars. Sprinkle the peanut butter chips and peanuts on top of the crust. Pour the peanut butter condensed milk mixture on top. Add the chopped Nutter Butters and Reese's Pieces.
      Use a spatula or fork to gently press the toppings into the condensed milk mixture so everything adheres.
      If desired, sprinkle with flaky sea salt.
    • Bake for 30 to 35 minutes or until the edges are golden brown. Place on a wire rack to cool. Chill in the refrigerator.
    • To serve, melt 2 tablespoons of peanut butter in the microwave and drizzle on top of the bars.

    Notes

    Store Nutter Butter bars wrapped in plastic wrap or in an airtight container at room temperature for a couple of days or in the refrigerator for up to one week. 
    To freeze, place bars in a freezer-safe container between layers of parchment paper or wax paper for up to 3 months. 

    Nutrition

    Calories: 334kcalCarbohydrates: 38gProtein: 8gFat: 18gSaturated Fat: 9gPolyunsaturated Fat: 3gMonounsaturated Fat: 5gTrans Fat: 0.2gCholesterol: 16mgSodium: 229mgPotassium: 184mgFiber: 1gSugar: 25gVitamin A: 162IUVitamin C: 0.4mgCalcium: 58mgIron: 1mg
    Tried this recipe?Let us know how it was!
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    Comments

    1. Barb Bridges says

      January 13, 2024 at 3:39 am

      I’m planning on making soon. Please note for increased servings directions only lists one 13 x 9 pan ( if I’m reading it correctly?)

      Reply
      • Cara Lanz says

        January 13, 2024 at 1:54 pm

        Hi, Barb, one batch of 24 bars fits in a 9 x 13 pan. Unfortunately, when you adjust the servings on the recipe card, the pan size doesn't change. A double batch should fit just fine in a half sheet pan -- just make sure the sides are high enough. If in doubt, place a pan underneath to catch any drips. Hope that helps?

        Reply
    2. Ann says

      October 05, 2023 at 9:43 pm

      5 stars
      These bars are the best I have eaten in a very long time. They are easy to make and they taste so good. It’s like you try a piece and then you can’t stop eating them they’re so good.

      Reply
      • Cara Lanz says

        October 06, 2023 at 9:59 am

        Thank you for the nice note, I'm so glad you enjoyed them! Cara

        Reply
    5 from 3 votes (2 ratings without comment)

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    Hi, I'm Cara!

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