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    Home » Dessert » Bars

    Peanut Butter Cup Cookie Bars

    Updated: Mar 20, 2024 · by Tonia Larson

    This post may contain affiliate links.

    ↓ JUMP TO RECIPE

     Peanut butter cookie bar recipe is topped with Reese’s Peanut Butter Cup Minis. This is another cake mix recipe that is easy to make and tastes delicious!

    Reeses Peanut Butter Cup Magic Crust Cookie Bars
    It’s still National Peanut Month so let the peanut butter love continue, right? I made these bars a couple of weeks ago to bring to a friend’s house. Yesterday I started making another peanut butter dessert because my two sisters who live out of state are coming home for a visit! Woohoo!

    It isn’t quite done so I am sharing the bars first and will share the other dessert next week. I know I said I am watching what I eat and eating healthier! That is still true and that is also why I make delicious treats like this to share with others!

    Crunchy Peanut Butter

    My husband is the biggest peanut butter fan I know. He’s loved it since he was a kid and it is one of those things that everyone knows about him. His friend’s parents and even some of their grandparents would keep crunchy peanut butter in their cupboards for when he came to visit. Once when we were dating my friends gathered up a bunch of the individual sized peanut butter packets from eating out at restaurants and presented them to him as a joke. His favorite is crunchy peanut butter but I like both the creamy and the crunchy.

    A friend of mine has a slight addiction to dipping carrots and celery in creamy peanut butter. She is doing her best to spread her fondness for the combination far and wide. So, what does that have to do with these bars? Nothing really, but that is what this spoonful of peanut butter made me think of.

    Peanut Butter Magic Crust

    Mix together a white cake mix, peanut butter (creamy or crunchy), canola oil, and an egg. It ends up looking pretty crumbly.

    Magic Cookie Crust

    Press the mixture into the bottom of a 9×13 inch foil lined, greased pan.

    Add Chocolate Chips

    Top the crust with peanut butter chips and chocolate chips.

    Reeses Peanut Butter Cup Magic Crust Cookie Bars

    Hello lovely little Reese’s Peanut Butter Cup Minis! Anyone else love these as much as I do?

    Add Reese's Peanut Butter Cup Minis

    Yep, you guessed it right…dump them on top of the baking chips.

    Sweetened Condensed Milk Bars

    Pour sweetened condensed milk over everything and pop it in the oven.

    Cut Reese's Peanut Butter Cup Cookie Bars

    I love these easy cookie bar recipes! They are so much faster than making individual cookies. Just put it all in the pan and bake.

    Peanut butter cookie bars.

    Peanut Butter Cookie Bars

    Reese's Peanut Butter Cup Minis are the perfect size for this peanut butter cookie bar recipe. This is another cake mix recipe that is easy to make and tastes delicious!
    4.60 from 10 votes
    ↑ Click stars to rate!
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    Prep Time: 10 minutes minutes
    Cook Time: 25 minutes minutes
    Total Time: 35 minutes minutes
    Servings: 20
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    Ingredients

    • 15.25 oz white cake mix
    • ½ cup peanut butter
    • ¼ cup vegetable oil
    • 1 large egg
    • 1 cup peanut butter chips
    • 1 cups semi sweet chocolate chips
    • 1 cup Reese's Peanut Butter Cup Minis
    • 14 oz sweetened condensed milk

    Instructions

    • Preheat oven to 350°F.
    • Mix together the cake mix, peanut butter, canola oil and the egg.
    • Press the mixture into the bottom of a 9×13 inch foil lined, greased pan.
    • Top the crust with peanut butter chips, chocolate chips and peanut butter cup minis.
    • Pour sweetened condensed milk over everything.
    • Bake at 350°F for about 25 minutes.
    • Allow the bars to cool completely before removing the foil and cutting them.
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    Nutrition

    Serving: 1slice | Calories: 373kcal | Carbohydrates: 44g | Protein: 8g | Fat: 20g | Saturated Fat: 7g | Polyunsaturated Fat: 12g | Cholesterol: 20mg | Sodium: 201mg | Fiber: 2g | Sugar: 36g
    Course: Dessert
    Cuisine: American
    Author: Tonia Larson

    Peanut_Butter_Recipes

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    About Tonia Larson

    Hi! I’m Tonia, the owner and recipe creator at The Gunny Sack, where I’ve shared easy recipes for busy people for 14+ years! My family-friendly meals, easy side dishes, and delicious desserts include mouthwatering photos, dynamic videos, and step-by-step instructions to help you cook at home.

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    Comments

      4.60 from 10 votes (9 ratings without comment)

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      Recipe Rating




    1. Andrea says

      December 26, 2020 at 1:44 pm

      I can’t wait to make these. I have vegetable oil as well as coconut oil on hand. Do you know if either of these would be an appropriate substitution for the canola oil?

      Reply
      • Tonia says

        December 26, 2020 at 3:24 pm

        The vegetable oil would work well!

        Reply
    2. Kim says

      May 7, 2016 at 6:22 pm

      Because of the sweetened condensed milk, do these need to be kept in the fridge or just left on the counter? I’m making them as we speak and wasn’t sure. They look delicious!!

      Reply
    3. K says

      September 5, 2015 at 4:01 pm

      5 stars
      Just made these…very rich and delicious! Will make again. Thanks 🙂

      Reply
    4. Jill says

      December 13, 2013 at 8:29 pm

      This recipe looks fantastic! Can it be frozen to store longer? Please let me know. Thanks!

      Reply
      • Tonia says

        December 13, 2013 at 9:11 pm

        Hi Jill,
        I think it would freeze very well! Happy Baking!
        ~Tonia

        Reply
        • Jill says

          December 13, 2013 at 9:17 pm

          Thanks for responding! I am going to give it a try this weekend!

          Reply
    5. Joyce says

      December 11, 2013 at 8:53 pm

      If you grease the pan why do you need to line with foil? It would seem to me that it would be difficult to cut into bars if you line the pan with foil. Are you lining with foil just to make cleanup easier?

      Reply
    6. Tara says

      December 8, 2013 at 3:31 pm

      These look amazing! I’m wanting to add them to my holiday baking menu. Do you know how they would freeze?

      Reply
      • Tonia says

        December 8, 2013 at 3:34 pm

        I think they would hold up very well in the freezer although I’ve never tried it. Happy Baking! ~Tonia

        Reply
    7. Rina says

      October 12, 2013 at 9:00 pm

      When you cut them, how do you prevent the foil from sticking to the bars?

      Reply
      • Tonia says

        October 12, 2013 at 9:40 pm

        Hi Rina,
        The only place it stuck for me was a little along the edges and I just carefully peeled it off. Be sure to grease the foil and I would suggest not pouring the sweetened condensed milk all the way to edges. Worst case scenerio, cut a half inch off each edge (where the caramelized sweetened condensed milk is) after baking. Best of luck and thanks for stopping by!
        ~Tonia

        Reply
    8. Chelsea says

      September 30, 2013 at 10:02 am

      Tried this recipe last night and I couldn’t wait to dig in to it. It was good warm but this morning after it had time to cool the entire night, it was delicious!! I made a mistake by buying dark chocolate mini reeses and mini chocolate chips but I used them anyways…guess I need to pay more attention at the grocery store!

      Reply
      • Tonia says

        September 30, 2013 at 10:31 am

        Wonderful! My kids would love the dark chocolate version!

        Reply
    9. Marianne says

      September 6, 2013 at 3:59 pm

      Possibility of using this with a different candy too?!!!!!

      Reply
      • Tonia says

        September 6, 2013 at 7:57 pm

        Definately! You can use any candy combination you want. Thanks for stopping by Marianne!

        Reply
    10. Julie says

      August 10, 2013 at 7:02 am

      Tonia, do you grease the foil? Or the pan? Forgive me or not being able to figure it out.

      Reply
      • Tonia says

        August 10, 2013 at 10:25 am

        Hi Julie,
        No worries! Yes, I greased the foil once it was in the pan.
        ~Tonia

        Reply
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    Tonia Larson from The Gunny Sack.

    Hi, I'm Tonia! Welcome to The Gunny Sack, where I’ve shared easy recipes for busy people for 15+ years! Meet Tonia Larson →

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