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    Home » Recipes » Microwave Recipes

    Published: Apr 26, 2023 Modified: Oct 17, 2023 by Nicole Durham This post may contain affiliate links.

    Rice Krispie Treat in a Mug

    Jump to Recipe

    Why make a bunch of treats when making one is just as easy? Within a few short minutes, you can have your own personal rice krispie treat in a mug. Gooey, sweet, and the perfect treat or late night snack.

    a fork holding a bite of rice krispie treat above a mug with more inside.

    Whether you're looking to cure a sugar craving or simply trying to use the odd amount of cereal at the bottom of the bag, this mug rice krispie treat is perfect for you.

    Made in just seconds, this recipe is simple enough to try again and again. Once you try microwave rice krispie treats in a mug, you may never snack the same way again. Ooey gooey marshmallows, buttery cereal, and the ability to eat it with a fork? The whole experience is phenomenal.

    For more rice krispie recipes, be sure to check out our Oreo Rice Krispie Treats or Rice Krispie Treats with Marshmallow Fluff.

    Jump to:
    • 🍯 Why This Recipe Works
    • 🥘 Ingredients
    • 🧾 Substitutions
    • 🔪 Instructions
    • 🍴 Recipe Tips
    • 👩🏻‍🍳 Storage
    • 💭 FAQs
    • ❤️ More Delicious Treat Recipes
    • 📖 Recipe
    • 💬 Comments

    🍯 Why This Recipe Works

    1. It's fast. Within seconds flat, your rice krispie is finished cooking. How long you wait to eat it is up to you, but this recipe is incredibly quick, especially when compared to making these treats in larger quantities using the traditional method.
    2. Minimal ingredients are needed. You'll need barely a handful of cereal or marshmallows for this recipe. This is significantly less than if you were to make a huge batch, and it's perfect for using up smaller amounts that may be in the pantry.
    3. Minimal dirty dishes are created. All you need is a fork and a mug for this recipe. No baking dishes, large pots, wooden spoons, etc. This means that you can prepare your recipe, enjoy it, and enjoy not having to spend more time cleaning up than you do cooking.

    🥘 Ingredients

    labeled ingredients needed to make rice krispie treats in a mug.

    Ingredient Notes:

    Butter- You will need a little bit of butter for this recipe. The butter will help to melt the marshmallows, keep the treats soft and add flavor to them as well. Not only that, but it helps to grease the mug, so the cleanup is much easier.

    Cereal- Use some rice crispy cereal for these treats. You can switch out the cereal for different varieties if desired.

    Marshmallows- Using mini marshmallows is recommended as they will melt more easily and uniformly.

    For specific ingredients and measurements, please see the recipe card below.

    🧾 Substitutions

    Cereal. Feel free to use any brand of cereal or cereal variety. Using fruity pebbles instead of rice krispies can give a nice fruity flavor, whereas cinnamon toast crunch can add a nice sweet and spice flavor.

    🔪 Instructions

    Step 1: Measure out the ingredients and keep them close by as this recipe will progress quickly.

    a mug with butter inside.

    Step 2: Add your butter to a 16 ounce microwave safe mug.

    a mug with melted butter inside.

    Step 3: Heat in the microwave for 10 seconds or until fully melted.

    a mug with mini marshmallows and melted butter inside.

    Step 4: Add in the mini marshmallows. You do not need to stir.

    a mug with melted marshmallows and butter inside.

    Step 5: Heat for 30 seconds.

    a mug with dry rice krispie cereal inside.

    Step 6: Add in the cereal.

    a mug with rice krispie treat mixture inside.

    Step 7: Stir together to combine.

    Step 8: You can choose to eat the treats right now, or you can wait. Waiting 1-2 minutes will soften the cereal and make the treat taste more like the traditional rice krispie treats you know and love.

    Waiting 5 minutes before eating will allow the krispie treat to cool down enough that you can form the mixture into an actual rice krispie square if that's what you'd prefer.

    Enjoy!

    a rice krispie square in front of a coffee mug with a fork inside.

    🍴 Recipe Tips

    Try not to overcook or over stir your treats. Microwaves all heat a little differently, and some may run hotter than others. For this, you'll want to test this recipe a time or two before getting the timing perfect. You want the butter just melted and the marshmallows to be just softened and starting to dissolve.

    Marshmallows will puff up when microwaved, and if overcooked, when you stir them around, they'll harden as they cool.

    👩🏻‍🍳 Storage

    This mug treat is meant to be eaten right away, but if desired, you can make it and save it for later.

    Room Temp

    You can store it in an airtight container or zipper-topped baggie for up to a week or two at room temperature. I recommend eating them sooner rather than later as they'll taste best when fresh.

    Freezer

    To freeze your treats, place them in an airtight container or individually wrap serving-sized squares in plastic wrap before placing them in a freezer-safe container. Then freeze for up to 3 months. Thaw at room temperature before eating.

    💭 FAQs

    Can I use margarine for my rice krispie treat?

    Yes, absolutely! Simply use any margarine instead of butter and follow the recipe as requested. The end result should be a soft texture that tastes fabulous. Another great alternative is to use coconut oil instead of butter, but it will leave a coconut flavor behind.

    Why is my Rice Krispie treat hard?

    If you overcook, over-stir, or overheat your marshmallows and butter, then you can easily end up with hard cereal treats.

    Can I use salted butter for rice krispie treats?

    Yes, you could use salted butter or unsalted depending on your preference. While unsalted butter may keep the flavors true, a little salt from salted butter could really make the flavors pop and add a nice contrast.

    a fork holding gooey marshmallow rice krispie cereal above a mug.

    ❤️ More Delicious Treat Recipes

    • chocolate topped peanut butter rice krispie treats on a wooden board.
      Chocolate Peanut Butter Rice Krispie Treats
    • dairy free rice krispie treats in a square plate.
      Dairy Free Rice Krispie Treats
    • sliced squares of fruity pebbles treats with scattered cereal and mini marshmallows around them.
      Fruity Pebbles Treats
    • peanut butter rice krispie treats on a plate.
      Peanut Butter Rice Krispie Treats

    If you tried this rice krispie treat in a mug, please leave a ⭐️ star rating and share your feedback in the 📝 comments section below. I would truly appreciate it!

    📖 Recipe

    inside a mug with a rice krispie treat mixture inside.
    Print Recipe
    5 from 1 vote

    Rice Krispie Treat in a Mug

    Why make a bunch of treats when making one is just as easy? Within a few short minutes, you can have your own personal rice krispie treat in a mug. Gooey, sweet, and the perfect treat or late night snack.
    Prep Time 2 minutes mins
    Cook Time 1 minute min
    Cool 5 minutes mins
    Total Time 8 minutes mins
    Servings: 1 serving
    Calories: 165kcal
    Cost Recipe $0.29
    Prevent your screen from going dark

    Equipment

    • Measuring Cups
    • Measuring Spoons
    • Microwave safe mugs
    • Fork
    • Microwave

    Ingredients

    • ½ Tablespoon Butter ($0.05)
    • ½ cup Crispy Rice cereal ($0.09)
    • ½ cup Mini marshmallows ($0.15)
    US Customary - Metric

    Instructions

    • Measure out the ingredients and keep them close by as this recipe will progress quickly.
    • Add your butter to a 16 ounce microwave safe mug.
    • Heat in the microwave for 10 seconds or until fully melted.
    • Add in the mini marshmallows. You do not need to stir.
    • Heat for 30 seconds.
    • Add in the cereal.
    • Stir together to combine.
    • You can choose to eat the treats right now, or you can wait. Waiting 1-2 minutes will soften the cereal and make the treat taste more like the traditional rice krispie treats you know and love.
    • Waiting 5 minutes before eating will allow the krispie treat to cool down enough that you can form the mixture into an actual rice krispie square if that's what you'd prefer.

    Notes

    Recipe Tips:
    Be careful not to overcook or over-stir your treats when microwaving. Microwaves vary in heating intensity, so it's a good idea to test the timing a couple of times to get it just right. You want the butter to be just melted, and the marshmallows should be softening and starting to dissolve.
    Marshmallows expand when microwaved, and overcooking can lead to hard treats as they cool and harden.
    Storage:
    These mug treats are best when enjoyed immediately, but if you wish to save them for later:
    Room Temperature: Store in an airtight container or sealed bag for up to a week or two. Freshness is best within this timeframe.
    Freezer: Freeze in an airtight container or individually wrap single servings in plastic wrap before freezing. These can be stored in the freezer for up to 3 months. Thaw at room temperature before consumption.

    Nutritional Information

    Serving: 1serving | Calories: 165kcal | Carbohydrates: 29g | Protein: 1g | Fat: 6g | Saturated Fat: 4g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 15mg | Sodium: 65mg | Potassium: 14mg | Fiber: 0.2g | Sugar: 14g | Vitamin A: 175IU | Calcium: 3mg | Iron: 0.3mg
    Author NicoleDurham
    Course Snack
    Cuisine American
    Tried this recipe?Mention @BeeyondCereal on Instagram and hashtag it #BeeyondCereal
    Nutrition provided is an estimate. It will vary based on specific ingredients used. To view how this recipe was calculated you can visit my Pricing Disclosure Page for more information.

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