• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Waiting for Blancmange
  • About
  • Recipes
  • Contact
menu icon
go to homepage
  • Recipes
  • About
  • Contact
    • Email
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
  • subscribe
    search icon
    Homepage link
    • Recipes
    • About
    • Contact
    • Email
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
  • ×
    • Overhead shot of white chocolate hazelnut blondies with Happy Hippos candy bars on top.
      White Chocolate Hazelnut Blondies
    • Close up shot of a slice of blackberry tiramisu. A fork has taken a bite out of the tiramisu which is sat on a small plate.
      Bramble Blackberry Tiramisu
    • Close up shot of chocolate chip oatmeal pistachio cookie broken in half revealing gooey soft inside of a freshly baked cookie.
      Oatmeal Chocolate Pistachio Cookies
    • A slice of homemade apple pie on a blue and white plate with a dessert fork. The pie is topped with ice cream and a generous drizzle of caramel sauce.
      Apple Pie with Apple Caramel Sauce
    • Black Velvet layer cake, with a slice cut and partly pulled out showing the layers. The cake is on a glass cake stand.
      Black Velvet Cake
    • Close up of blackberry curd in a glass jar.
      Easy Homemade Blackberry Curd
    • Close up shot of pouring a rich purple blackberry simple syrup from a small jug into a purple bowl blurred below.
      Bramble Blackberry Simple Syrup
    • Overhead shot of a British Christmas cake fresh from the oven, being fed bourbon with a spoon. The cake is still in its lined baking pan, which is sat on trivet to cool.
      Easy British Christmas Cake
    • Stack of butterscotch chip biscoff oatmeal cookies. The top cookie is split in half to show to oozy biscoff filling.
      Butterscotch Biscoff Oatmeal Cookies
    • Overhead shot of a pumpkin pie with graham cracker crust. The pie is covered in whipped cream and a sprinkle of cookie crumbs. A slice is being removed from the pie.
      Pumpkin Pie with Graham Cracker Crust
    • Overhead shot of Biscoff fudge brownies cut into pieces and sat on a white countertop.
      Biscoff Brownies
    • Close up of fudgy dark chocolate black cocoa spider web brownies with candy eyes on top.
      Spider Web Brownies
    Home » Recipes » No Bake Desserts

    Peanut Butter Rice Krispie Treat

    Published: May 25, 2021 · Modified: Aug 13, 2022 by Liz Mincin · This post may contain affiliate links

    Jump to Recipe Print Recipe

    My peanut butter rice krispie treat recipe is a nutty twist on the much-loved classic! Same sticky, crispy, crunchy snack with a dash of peanut butter and some M&Ms for good measure - perfect for the peanut butter lovers!

    Drizzling peanut butter over peanut butter rice krispies with chocolate and peanut M&Ms.

    Ingredients

    Rice Krispie treats have a fantastically minimal ingredient list:

    • Rice Krispie cereal: Any sort of puffed rice cereal will work fine in a rice krispie treat. I like to use the classic, but the main thing is to ensure whatever cereal you are using is fresh. To make for the crispy (or should I say krispie?) treat, it is important that your cereal is not stale.
    • Marshmallows: My recipe below uses mini marshmallows, but you can use any size or brand. As with the cereal, you'll want to ensure these are fresh for best results.
    • Butter

    To make these peanut butter rice krispie treats with chocolate peanut M&Ms, you will also need:

    • Peanut Butter: I like to use smooth peanut butter and have found Pip & Nut a great variety to work with for flavour and silky texture. You can use chunky peanut butter instead in this recipe - the nuts will add an extra texture.
    • Peanut Butter M&Ms
    Ingredients for peanut butter rice krispies with mini marshmallows and chocolate peanut candies.

    Process

    If you've never made rice krispie treats, the process is super simple! The key thing to do is a little bit of prep in advance. Line your tin with parchment paper or cling film and grease this lightly with a little flavourless oil or non-stick spray. Trust me, this little bit of prep will save you any sticky annoyances later and will make removing from the pan a breeze!

    I use an 8" square tin for most of my bar desserts, including rice krispies. This recipe will make for thick bars in a 8" pan, but you could use a slightly larger container if you want thinner bars.

    In a saucepan over medium heat, melt your butter and marshmallows together, stirring occasionally until smooth. This takes about 10 minutes, but may vary depending on the size of your marshmallows. Once melted, add your peanut butter, stir to incorporate. Then add your cereal and M&Ms, stirring through.

    Pour this into your prepared heat-proof dish and spread out with a greased spatula or your hands (careful in case there are still patches of hot marshmallow). Press down lightly - you don't want to pack the mixture too firmly as this can cause hard treat bars and smashed cereal.

    Let your krispies cool completely before removing from the pan and slicing. I usually let sit for an hour or two.

    Cooling marshmallow cereal treats in a plastic wrap lined square plate.

    Some Alternatives to the Peanut Butter Rice Krispie Treat

    The beauty of rice krispie treats is the infinite possibilities for alternatives! Some ideas that I'm currently developing:

    • Chocolate rice krispie treats - adding cocoa and chocolate chips to your mix.
    • Biscoff rice krispie treats - replacing the peanut butter for biscoff and adding some crushed biscuits.
    • Seasonal rice krispie treats - additions of sprinkles and/or seasonal candies.

    Tips and Tricks

    1. Line your pan!! This will make the end product so much easier to handle.
    2. Use flavourless oil for greasing your lining, your spatula and your knife when slicing. The oil will help to avoid things sticking. This will make forming the bars easier and slicing them smoother. It's important that the oil is flavourless as you will be able to taste it on the treats. Olive oil can be particularly strong and (unless you know you like the combination) you may not find it a good combination with the marshmallow and peanut butter.
    3. Press your bars lightly when spreading out - don't pack these into the tin. Packing the mixture too tightly can make for dense, hard treats.
    4. Use fresh cereal and marshmallows. Rice Krispie treats may seem like a good way to use up old cereal or marshmallows, but if your products are already stale or past their best, the treats won't be as sticky and crisp.
    5. Add your peanut butter to the marshmallow before adding the cereal. It may be tempting to add it all together, but you won't be able to thoroughly mix the peanut butter in once the cereal is added.
    Lining a heat proof dish with plastic wrap and greasing this with flavourless oil.

    FAQs for Peanut Butter Rice Krispies

    Can you add peanut butter to rice krispie treats?

    Yes - absolutely! This is an easy recipe for marshmallow rice krispie treats made with peanut butter and also chocolate peanut M&Ms.

    Can I double this recipe?

    Yes! This recipe is easily scale-able - you can double, triple or halve it for whatever your needs.

    How long do the peanut butter rice krispie treats keep?

    Rice krispie treats are best eaten as fresh as possible for the sake of the crispy crunch! They will keep for a couple of days, best stored in an air tight container at room temperature.

    Can I keep these in the refrigerator for longer?

    No - it is best not to refrigerate (or freeze) the rice krispie treats. Refrigeration will make them harder and stale faster. They may also become soggy due to condensation.

    What type of peanut butter should I use?

    I would recommend using a smooth peanut butter to mix into the marshmallow well, but chunky can be used too.

    Looking for some easy snacks? Try these out:

    • No Bake Nanaimo Bars
    • Chocolate Rice Krispie Treats
    • No Bake Peanut Butter Potato Chip Cookies
    • Cookie Bottomed Brownies
    Drizzling peanut butter over peanut butter rice krispies with chocolate and peanut M&Ms.

    Peanut Butter Rice Krispie Treats

    Liz Mincin
    A nutty take on the marshmallowy classic. These peanut butter rice krispies with chocolate peanut M&Ms are sure to be a fun twist for your family.
    5 from 1 vote
    Print Recipe Pin Recipe
    Prep Time 20 minutes mins
    Cook Time 0 minutes mins
    Cooling 1 hour hr
    Course Dessert, Snack
    Cuisine American
    Servings 16 slices
    Calories 75 kcal

    Equipment

    • 8" square baking tray or other similar sized heatproof dish
    • large mixing bowl
    • saucepan
    • spatula

    Ingredients
      

    • 2 tablespoon butter
    • 2½ cup mini marshmallows
    • 2 tablespoon peanut butter
    • 4 cup Rice Krispies or other puffed rice cereal
    • ½ cup peanut M&Ms

    Instructions
     

    • Start by preparing a square dish or deep sided baking tin for shaping and setting the mixture. Either grease the tin directly with oil or cooking spray, or line with cling film and grease this (the cling film makes it easier to remove from the tin later). Set aside.
    • In a large saucepan, melt together the butter and marshmallow until smooth - this will take about 10 minutes over medium heat.
    • Once smooth, remove from heat and add the peanut butter - mixing to incorporate.
    • Add the cereal and M&Ms, stir to coat and tip into your prepared pan. Spread out using a greased spatula or your hands (be careful in case the mixture is still hot).
    • Once spread in the tin, allow to cool completely and set for at least an hour before slicing.

    Notes

    See the blog post for more tips and tricks.

    Nutrition

    Calories: 75kcalCarbohydrates: 11.7gProtein: 1.2gFat: 2.9gSaturated Fat: 1.3gCholesterol: 4mgSodium: 103mgPotassium: 13mgFiber: 0.2gSugar: 4.2gCalcium: 2mgIron: 2mg
    Tried this recipe?Mention @waitingforblancmange or tag #waitingforblancmange!

    More No Bake Desserts

    • A cone of cinnamon roll ice cream with cinnamon swirl and edible cinnamon roll cookie dough bites. The cone is being held in a glass jar. In the background is a pan full of the remaining ice cream.
      No Churn Cinnamon Roll Ice Cream
    • Overhead shot of sliced no bake blueberry swirl cheesecake bars.
      No Bake Blueberry Swirl Cheesecake Bars
    • Overhead shot of a piece of no bake pistachio cheesecake with a pistachio white chocolate ganache topping and pieces of pistachio and rose petals for decoration.
      No Bake Pistachio Cheesecake
    • Close up of white chocolate pistachio truffle coated in ground pistachios.
      White Chocolate Pistachio Truffles

    Reader Interactions

    5 from 1 vote (1 rating without comment)

    Leave a Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    Primary Sidebar

    Image of Liz Mincin blogger and recipe developer behind Waiting for Blancmange.

    Hi, I'm Liz! I'm an American expat in the UK, with over 20 years experience baking and creating desserts. Taught tricks and tips by my mother and grandmothers, I'm sharing recipes and baking tips from my Italian American and Southern roots, along with a few British staples picked up from my time living across various regions in the UK.

    More about me →

    Spring Faves

    • Close up shot of chocolate chip oatmeal pistachio cookie broken in half revealing gooey soft inside of a freshly baked cookie.
      Oatmeal Chocolate Pistachio Cookies
    • A slice of lemon and blackberry layer cake with blackberry filling and blackberry buttercream.
      Lemon Blackberry Cake
    • Close up of mini cheesecake with chocolate ganache sitting in its open cupcake wrapper after a bite has been taken.
      Mini Cheesecakes with Chocolate Ganache
    • Overhead shot of a piece of no bake pistachio cheesecake with a pistachio white chocolate ganache topping and pieces of pistachio and rose petals for decoration.
      No Bake Pistachio Cheesecake

    Easter Treats

    • Soft and chewy giant Peeps cookie with a gooey marshmallow centre, white chocolate chips and sprinkles.
      Peeps Cookies
    • Close up of hot cross bun cinnamon rolls.
      Hot Cross Bun Cinnamon Rolls
    • Large slices of mini egg brownies with two pieces on their side to show the fudgy brownie base with mini eggs.
      Mini Egg Brownies
    • Cadbury Creme Egg cookies.
      Creme Egg Cookies

    Featured In:

    Footer

    ↑ back to top

    About

    • Privacy Policy
    • Disclaimer
    • Terms & Conditions

    Newsletter

    • Sign Up! for emails and updates

    Contact

    • Contact
    • About

    As an Amazon Associate I earn from qualifying purchases.

    Copyright © 2025 Waiting for Blancmange

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required

    Recipe Ratings without Comment

    Something went wrong. Please try again.