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    Home » Recipes

    Frankenstein Rice Krispie Treats for Halloween

    Published: Sep 20, 2020 · Modified: Feb 28, 2023 by Emily · This post may contain affiliate links · 36 Comments

    These Halloween Frankenstein Rice Krispie Treats are easy to make and so fun to eat! They are perfect for a party, a school treat, or just a fun family dessert.

    frankenstein rice cereal treats
    Jump to Recipe Jump to Video

    Need an easy treat for Halloween? I've got the perfect recipe for you…Frankenstein Rice Krispie Treats!!!
    These are easy to make and so fun to decorate. Everyone is going to love this fun dessert!

    And, if you love rice cereal treats as much as I do, check out my other holiday recipes for Shamrock Rice Krispie Treats, Rice Krispie Treat Stars, Reindeer Rice Krispie Treats, Santa Hat Rice Krispie Treats.

    CHECK OUT MY WEB STORY HERE!

    Ingredients Needed for Frankenstein Halloween Treats

    • butter
    • marshmallows
    • puffed rice cereal
    • vegetable shortening 
    • vanilla extract
    • salt
    • powdered confectioners sugar
    • green food coloring
    • black decorating frosting
    • eyeball candy
    • graham crackers
    • sprinkles

    How to Create Frankenstein Rice Krispie Treats

    • First, make some rice krispie treats. Press the treats firmly into the baking pan to ensure they are nice and packed and allow them to cool.
    • Remove the treats from the pan and cut it into rectangles. I trimmed off the curved edges first to get nice straight lines.
    • Frost each rectangle with a thick layer of frosting and place in the fridge for 15 minutes to firm. This makes decorating easier.
    rectangles rice krispie treats with green buttercream frosting
    • Create the hair and mouth with black decorating frosting. Add eye candies, sprinkles, and any other decoration you would like. For the studs on the side of the face, cut up small squares of the graham crackers and push them into the side of the frosting. Get creative!
    frankenstein rice krispie treats in a row

    How to Make Thick Buttercream Frosting

    This is my go-to buttercream frosting for cookies, cakes, and treats when I need a substantial frosting that will hold up well and create a thick layer. I learned this recipe from The Icing Artist who has awesome tutorials and recipes.

    • Place the butter and shortening in a stand mixer and cream together on medium speed. Mix in vanilla and salt.
    • Begin to add powdered sugar one cup at a time, mixing on low speed until combined then med-high speed for a minute or so each time. After each cup addition, add a tablespoon of cold water to get your desired consistency.
    • Add gel food coloring to the desired color.
    side view of frosted rice krispie rectangle

    Decorating Tools and Tips for Halloween Rice Krispie Treats

    • To make the candy eyes look bloodshot, use an edible marker to draw on them.
    • Packaged decorating icing is an inexpensive and easy way to decorate without making another frosting. It dries shiny and thick which is perfect for decoration. Black is also a hard color to achieve when making your own frosting, so why not let someone else do it?!
    • A wet finger can smooth out imperfections in the frosting.
    • I used different sprinkles I had on hand to make eyebrows and noses on some of the Frankensteins. I thought it was fun to make different faces and expressions.
    • To get a nice, packed rice cereal treat, spray your hands with non-stick spray and press firmly all over the pan. Be careful, the mixture is hot at first so wait for it to cool slightly.
    • These treats are best at room temperature, but I would suggest storing them in the fridge until you are ready to serve them. Allow them to sit at room temperature for about 10 minutes to allow them to soften before enjoying.
    cookie icing, red edible marker, candy eyeballs

    More Fun Dessert Recipes to Try

    • Easy Cake Bites
    • Instant Pot Strawberry Cheesecake
    • Easy Macaron Recipe for Beginners
    • No-Bake Cake Batter Mousse
    • Homemade Snickers Bars
    Click on the image above to PIN for later!
    frankenstein rice cereal treats

    Frankenstein Rice Krispie Treats

    These Frankenstein Rice Krispie Treats are the perfect dessert for Halloween and so fun to make!
    5 from 42 votes
    Print Pin Rate
    Prep Time: 20 minutes
    Cook Time: 10 minutes
    Chill Time: 10 minutes
    Total Time: 30 minutes
    Servings: 10 treats
    Calories: 554kcal
    Author: EmilyFabulous

    Equipment

    • large pot
    • 9x13 pan
    • non-stick spray
    • stand mixer or hand mixer
    • large mixing bowl or stand mixer bowl

    Ingredients

    Rice Cereal Treats

    • 3 tablespoon butter
    • 6 cups rice cereal
    • 4 cups marshmallows

    Thick Buttercream Frosting

    • ¼ cup unsalted butter, room temp
    • ¾ cup shortening
    • ½ teaspoon vanilla extract
    • ½ teaspoon almond extract
    • 1 pinch kosher salt
    • 4 cups confectioners powdered sugar
    • 3-4 tablespoon water, room temp
    • green gel food coloring

    Decorations

    • black cookie decorating icing (I used Betty Crocker Brand)
    • candy eyeballs
    • assorted sprinkles
    • graham crackers

    Instructions

    Rice Cereal Treats

    • Prepare a 9/13 pan with non-stick spray. Melt the butter in a large pot over medium heat. Add the marshmallows and stir until fully melted in the butter. Remove from the heat and stir in the rice cereal. Add to the prepared dish and press into the pan as much as you can. Allow the treats to cool in the pan.
      rice krispie treats pressed into a pan

    Thick Buttercream Frosting

    • Place the butter and shortening in a stand mixer or mixing bowl and cream together on medium speed. Add the vanilla and salt and continue mixing. Begin to add confectioners sugar one cup at a time, mixing on low speed until combined then med-high speed for a minute or so each time. After each cup addition, add a tablespoon of water to get your desired consistency. Add the gel food coloring and fully incorporate it.
      rice krispie treats pressed into a pan

    Frankenstein Decorating

    • Frost each rectangle with a thick layer of frosting and place in the fridge for 15 minutes to firm. This makes decorating easier.
      rice krispie rectangles with green frosting
    • Create the hair and mouth with black decorating frosting. Add eye candies, sprinkles, and any other decoration you would like. For the studs on the side of the face, cut up small squares of the graham crackers and push them into the side of the frosting.
      frankenstein treats

    Video

    Notes

    • To make the candy eyes look bloodshot, use an edible marker to draw on them.
    • A wet finger can smooth out imperfections in the frosting.
    • To get a nice, packed rice cereal treat, spray your hands with non-stick spray and press firmly all over the pan. Be careful, the mixture is hot at first so wait for it to cool slightly.
    • These treats are best at room temperature, but I would suggest storing them in the fridge until you are ready to serve them. Allow them to sit at room temperature for about 10 minutes to allow them to soften before enjoying.
    • The buttercream frosting can be made ahead of time and stored in an airtight container in the fridge for up to 3 days before use. 
    • If you have leftover frosting, you can freeze it in a sealed container for up to 3 months.

    Nutrition

    Serving: 1serving | Calories: 554kcal | Carbohydrates: 83.9g | Protein: 1.7g | Fat: 24.7g | Saturated Fat: 10.5g | Cholesterol: 24mg | Sodium: 249mg | Potassium: 35mg | Sugar: 57.8g | Calcium: 4mg | Iron: 8mg

    Any nutrition calculations are only estimates using online calculators. Please verify using your own data.

    Did you make these Halloween Frankenstein Rice Krispie Treats?

    I love to see your interpretation of my recipes so if you make these fun Halloween Frankenstein Treats, tag me on Instagram or Facebook and show me your creation! And don't forget to leave a review 😊.

    You can also follow me on Pinterest and sign up for my email list so you never miss a recipe!

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    Reader Interactions

    Comments

    1. Katie says

      October 20, 2022 at 5:10 am

      5 stars
      Perfect cute holiday treat! It's easy to make and so much fun!

      Reply
    2. nancy says

      October 04, 2022 at 2:36 pm

      5 stars
      super cute idea and the kids really enjoyed making it for thier bake sale!

      Reply
    3. Katie says

      October 04, 2022 at 5:10 am

      5 stars
      Love this halloween treat! I can't wait to make them for my annual party!

      Reply
    4. Natalie says

      October 04, 2022 at 12:27 am

      5 stars
      These Frankenstein Rice Krispie Treats look amazing! They will be perfect for my daughters party, thanks!

      Reply
    5. Shelby says

      October 03, 2022 at 10:31 am

      5 stars
      Oh my gosh these are so cute! The best Halloween party dessert!

      Reply
      • Emily says

        October 03, 2022 at 10:30 pm

        Thanks, Shelby!

        Reply
    6. Amy Liu Dong says

      September 26, 2022 at 9:12 pm

      5 stars
      I love how cute and easy to make this treat for the kids. I am sure they will love this!

      Reply
      • Emily says

        September 26, 2022 at 10:56 pm

        They will! Have fun making them 😊

        Reply
    7. Cindy Mom the Lunch Lady says

      August 26, 2021 at 1:20 am

      5 stars
      I absolutely LOVE Halloween food and recipes. These rice krispie treats are so darn cute and I'm sure the students will love if I have these in the cafeteria this year!

      Reply
      • Emily says

        August 26, 2021 at 2:02 am

        They are totally fun, thanks for checking them out!

        Reply
    8. Anaiah says

      August 25, 2021 at 9:33 pm

      5 stars
      Love this rice krispie treats idea! Such a fun activity to do with the kids. Thanks for sharing!

      Reply
      • Emily says

        August 26, 2021 at 2:03 am

        Kids and adults will love these treats...I know from experience 😉.

        Reply
    9. Alyssa Hixenbaugh says

      October 23, 2020 at 4:38 pm

      5 stars
      These rice crispies are so cute, and what a great idea! I’m keeping this recipe for when I have kids because I’ll definitely be making these for them! 🙂

      Reply
      • Emily says

        October 23, 2020 at 5:17 pm

        Thanks, Alyssa!

        Reply
    10. Mary Stephens says

      October 23, 2020 at 3:43 pm

      These are super cute! When my kids were little I used to have huge halloween parties and these would have been perfect!

      Reply
      • Emily says

        October 23, 2020 at 4:06 pm

        Thanks, Mary! They are so fun and I have to say...grown kids like them too...like me! 🙂

        Reply
    11. Mama Maggie's Kitchen says

      September 23, 2020 at 2:34 am

      5 stars
      It looks incredibly delicious. I wish this were in front of me.

      Reply
    12. Leslie says

      September 22, 2020 at 7:00 pm

      5 stars
      I don't think I have ever had Rice Krispy treats with buttercream frosting. This looks amazing and super cute for Halloween!

      Reply
      • Emily says

        September 23, 2020 at 5:03 am

        I pretty much believe anything is better with frosting...lol!!

        Reply
    13. Tera says

      September 22, 2020 at 6:57 pm

      5 stars
      I just adore these! Thanks for sharing! I will make these next month for sure.

      Reply
      • Emily says

        September 23, 2020 at 5:02 am

        Thanks, I hope you do get a chance to make them!

        Reply
    14. Amanda Marie Boyle says

      September 22, 2020 at 12:49 pm

      5 stars
      These are so cute! I love it!

      Reply
      • Emily says

        September 22, 2020 at 3:45 pm

        Thanks, Amanda!

        Reply
    15. Amy says

      September 22, 2020 at 6:09 am

      5 stars
      Oh my! How cute are these?? Definitely on the Halloween list of goodies!

      Reply
      • Emily says

        September 22, 2020 at 3:46 pm

        Thanks, Amy, I hope you get a chance to make them!

        Reply
    16. Alexandra says

      September 22, 2020 at 12:32 am

      5 stars
      This is such a fun Halloween treat, and the kids love it!

      Reply
      • Emily says

        September 22, 2020 at 1:00 am

        So fun to make and eat...for kids and adults! LOL!

        Reply
    17. Andréa Janssen says

      September 21, 2020 at 8:30 pm

      5 stars
      How beautiful they are. I'm going to prepare these ones with the kids this Halloween.

      Reply
      • Emily says

        September 22, 2020 at 12:59 am

        The kids will love it, I promise...and maybe the parents too :)!

        Reply
      • Jess says

        October 03, 2022 at 7:15 pm

        5 stars
        So cute and perfect for kids on Halloween!

        Reply
    18. Christina says

      September 21, 2020 at 8:19 pm

      5 stars
      OMG, this is just way too cute!!

      Reply
      • Emily says

        September 22, 2020 at 12:59 am

        Thank you, Christina, they are so fun to make!

        Reply
    19. Sunrita says

      September 21, 2020 at 7:03 pm

      5 stars
      Wow! The kids will be howling with delight looking at these and eating them.

      Reply
      • Emily says

        September 21, 2020 at 7:37 pm

        They will! And these treats are fun to make with them, they will love making funny faces.

        Reply
    20. Taleen | Just As Tasty says

      September 21, 2020 at 6:31 pm

      5 stars
      These are super cute! What a fun idea!

      Reply
      • Emily says

        September 21, 2020 at 7:35 pm

        Thanks, Taleen. They are fun to make and to eat!

        Reply

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