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    Home » Recipes » All Desserts

    M&M Rice Krispie Treats

    Published: May 13, 2023 by In Fine Taste · This post may contain affiliate links

    Jump to Recipe Jump to Video Print Recipe

    These are the BEST M&M rice krispie treats! They’re made with brown butter, marshmallow fluff, extra mini marshmallows, mini M&Ms, topped off with more M&Ms, mini chocolate chips, and flaky sea salt.  

    M&M rice krispie square on white parchment paper.
    Jump to:
    • Why You’ll Love This Recipe
    • Ingredient Notes
    • How to Make this Recipe
    • Frequently Asked Questions (FAQs)
    • Expert Tips
    • Rice Krispie Treat Variations
    • How to Store this Recipe
    • Try These Recipes Next
    • M&M Rice Krispie Treats

    Why You’ll Love This Recipe

    Here’s why you’ll love this recipe:

    • Easy to make
    • No baking required
    • Great for sharing
    • Fully loaded with marshmallows and M&Ms
    • Brown butter makes everything better

    For the fellow cereal lovers, you also  need to try our fruity pebbles cookies and s’mores rice krispie treats.

    Ingredient Notes

    ingredients for recipe laid out.
    • Butter. Salted or unsalted butter work in this recipe. Butter adds rich flavor, and keeps the marshmallows from drying out. We brown the butter before melting the marshmallows, adding rich toffee notes to these rice krispie treats.
    • Marshmallows. We add marshmallows in with the melted butter to act as a binder, but also mini marshmallows into the mix whole for bursts of marshmallow.
    • Marshmallow Fluff. Marshmallow fluff, also called marshmallow cream or marshmallow crème makes these extra marshmallowy, giving a creamy, gooey texture.
    • Vanilla. Vanilla enhances the flavors.
    • Salt. A little salt enhances the flavors. We also top off the treats with a little sea salt for a sweet and salty flavor.
    • Rice Krispies Cereal. You’ll need a crisp rice cereal like Kellogg’s Rice Krispies, any off-brand will work great too.
    • M&Ms. Milk chocolate M&Ms are recommended. I used a mix of regular M&Ms and mini M&Ms, either will work. M&Ms are mixed into the rice krispie treats and cover the top of the rice krispie squares.
    • Mini Chocolate Chips. This is optional, I like to sprinkle a few mini chocolate chips on top of the rice krispie treats.

    How to Make this Recipe

    Pro Tip: Freeze the M&Ms before adding them into the mix to keep them from melting.

    two images showing how to brown butter and how to melt marshmallows and butter.
    1. Brown the Butter. Place the butter in a large saucepan over medium heat and melt the butter. Continue stirring and cooking the butter until it turns a deep amber color and smells toasted. It should take about 8 minutes. If you need a visual and step-by-step tutorial see our post, How to Brown butter.
    2. Melt the Marshmallow. Set aside 3 cups of mini marshmallows for mixing in later. Add the rest of the marshmallows into the pan with the brown butter. Stir around coating the marshmallows in butter. Keep stirring until the marshmallows and butter are completely melted and smooth.
    two images showing how to add in marshmallow fluff and how to add in cereal and M&Ms.
    1. Remove from Heat. Remove the pot from the heat. Add in the vanilla, salt, and marshmallow fluff. Stir together until mostly smooth, a few chunks of marshmallow fluff is okay.
    2. Mix in the Cereal. If you pot is large enough, you can add it directly into the pot, or use a large mixing bowl. Mix the marshmallow mixture, with the rice krispies cereal, 2 cups of M&Ms (mini or regular), and reserved mini marshmallows. Stir together until everything is evenly mixed.  
    two images showing how to press rice krispie treats into the pan and top them off with m&ms.
    1. Press in Pan. Grease a 9x13-inch pan or line it with parchment paper. Pour M&M rice krispie treat mixture into the pan. Grease your hands with butter or nonstick cooking spray and gently pat the mixture until even and smooth in the pan.
    2. Top off. Top off the rice Krispie treats with reserved M&Ms, mini chocolate chips, and a little bit of flaky sea salt. Cool for about 30-60 minutes before cutting into.

    Frequently Asked Questions (FAQs)

    How many calories are the m&m rice krispie treat?

    For 1/24 of this recipe, these rice krispie treats have 168 calories, 8 grams fat, 24 grams carbohydrates, and 1 gram protein.

    Can I halve this recipe?

    Yes. This makes a large batch of very thick rice krispie treats with M&Ms! You can halve this recipe and put it in a 9x13-inch pan for a thinner rice krispie treat or in an 8x8 or 9x9-inch pan for a thicker rice Krispie treat.

    Is melting marshmallows the same as marshmallow fluff?

    No, melting marshmallows is not the same as marshmallow fluff. Marshmallows contain gelatin which allows them to set and maintain their shape. Marshmallow fluff (also known as marshmallow cream or marshmallow crème) contains no gelatin leaving it creamy and spreadable.

    Does it matter if I use mini or regular M&Ms?

    You can use either, it is totally a personal preference. I used a mixture of both.

    Expert Tips

    • Freeze the M&Ms. Freeze the M&Ms for at least 30 minutes or longer before mixing  them! The milk chocolate has a low melting point, meaning that even the warm marshmallow mixture is enough to melt them making a chocolatey mess in your rice krispie treats. By freezing the M&Ms, they keep their shape when mixed in with the cereal.
    • Don’t overheat the marshmallows. You want to heat the marshmallows just enough that they melt. If heated for too long the sugar will harden as the temperature rises, leaving you with hard rice krispie treats.
    • Press gently. When pressing the rice krispie treat mixture into the pan, press gently. You don’t want to make the treats too dense and you don’t want the M&Ms to burst open while they are warm.
    • Wait before cutting. We recommend waiting 30-60 minutes before cutting into these rice krispie treats with M&Ms. That’s for two reasons: 1) to allow time for the marshmallow to set up so the treats don’t fall apart and are easier to cut, and 2) so the chocolate M&Ms can reharden and won’t burst when cut into.
    hand grabbing rice krispie treat.

    Rice Krispie Treat Variations

    Use Holiday M&Ms

    Seasonal M&Ms are the easiest way to mix these up! Use the orange fall mix for Halloween, the red and green for Christmas, pink and red M&Ms for Valentines, pastel Spring M&Ms around Easter time, or even the red, white, and blue ones for the 4th of July.

    You can also dye the rice krispie treat base to make them more festive for the holidays. Just add a few drops of food coloring into the melted marshmallow mixture. I love turning them green for Christmas or pink for Valentine’s day 

    Chocolate Rice Krispie Treats

    These rice krispie treats are great when paired with a chocolate rice krispie treat base! You can do this two ways, use a chocolate cereal like cocoa krispies or cocoa pebbles. Or you can flavor traditional rice krispies by adding an extra tablespoon of melted butter and ¼ cup of unsweetened cocoa powder to the melted marshmallow mixture before mixing it with the cereal.

    Peanut Butter M&M Rice Krispie Treats

    Peanut butter M&Ms are my favorite M&Ms easily. Try swapping regular M&Ms for peanut butter M&Ms in this recipe! I also love pairing the peanut butter M&Ms with a chocolate rice krispie treat base (above). You can also add a couple heaping spoonfuls of creamy peanut butter into the melted marshmallow mixture if you want the base to be flavored with extra peanut butter!

    Flavored M&Ms

    M&Ms have so many different flavors these days! These rice krispie treats with M&Ms would be fun to mix up with some different flavors. Some fun flavors to try in this recipe could be the key lime M&Ms, caramel cold brew M&Ms, caramel M&Ms, dark chocolate M&Ms, or pretzel M&Ms.

    two rice krispie treats stack on top of each other.

    How to Store this Recipe

    Make sure these rice krispie treats are completely cool before slicing or covering them. This usually takes 30-60 minutes.

    Once cooled, keep them covered with either plastic wrap or aluminum foil to preserve their soft texture. If left uncovered for an extended period, they will start to dry out. Rice krispie treats are best stored at room temperature.

    For the freshest rice krispie treats, consume within three days.

    Some people are tempted to pop them in the refrigerator to cool them faster, I do not recommend this! This hardens and dries out the marshmallow.

    signature: "Enjoy! Alyssa".

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    P.S. If you tried this recipe or any other In Fine Taste recipe take a second and rate it below! We love hearing what you think.  Let’s stay in touch! Sign up for our newsletter or follow us on Facebook, Instagram, or Pinterest for more recipe ideas.

    rice krispie treat square with M&Ms on top.

    M&M Rice Krispie Treats

    These are the BEST M&M rice krispie treats! They’re made with brown butter, marshmallow fluff, extra mini marshmallows, mini M&Ms, topped off with moreM&Ms, mini chocolate chips, and flaky sea salt.  
    4.67 from 6 votes
    Print Pin Rate
    Course: All Desserts
    Cuisine: American
    Prep Time: 20 minutes minutes
    Total Time: 20 minutes minutes
    Servings: 24 pieces
    Calories: 168kcal
    Author: In Fine Taste--Alyssa

    Ingredients

    • ¾ cup butter salted or unsalted
    • 12 cups mini marshmallows (two 10 ounce bags)
    • 1 tablespoon vanilla
    • ½ teaspoon salt
    • 12 ounce box Rice Krispies Cereal (12 cups)
    • 13 ounce container marshmallow fluff (or two 7 ounce containers)
    • 2 ¼-1/2 cups M&Ms candies (mini or regular)
    • 1 ½ tablespoons mini chocolate chips (optional)
    • flaky sea salt for topping
    Prevent your screen from going dark

    Instructions

    • Freeze your M&Ms for at least 30 minutes before using, this will help prevent them from melting when added to the warm mixture.
    • In a large pot, over medium heat, add your butter, melt it, and brown it. Stir it continuously for 8-10 minutes until it has a rich nutty smell, and has a deep amber color.
    • Set aside 3 cups of marshmallows to mix in later. Add in the remaining marshmallows to the brown butter. Keep stirring until the brown butter and marshmallows are melted and smooth. Remove from heat.
    • Stir in the vanilla, salt, and marshmallow fluff until mostly smooth.
    • If your pot is large enough you can do this in the pot, or use a large mixing bowl. Mix the melted marshmallow mixture with the rice krispies cereal, mini marshmallows, and 2 cups of M&Ms (save ¼-½ cup for topping).
    • Grease a 9x13-inch pan or line with parchment paper. Pour mixture into the pan. Grease your hands with butter or nonstick cooking spray and gently press the rice krispie treat mixture down with your hands until even and smooth.
    • Top off with ¼-½ cup of M&Ms and mini chocolate chips. Sprinkle a little flaky sea salt over top. Cool for 30-60 minutes before slicing into. Once cool, cover tightly with plastic wrap to prevent them from drying out.

    Video

    Notes

    Brown Butter. If you prefer, you can skip browning the butter and just use melted butter instead.

    Nutrition

    Serving: 1square | Calories: 168kcal | Carbohydrates: 24.4g | Protein: 0.6g | Fat: 7.7g
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