Frankenstein Rice Krispie Treats for Halloween

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.

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frankenstein rice cereal treats

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

  • 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

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 24 votes
Print Pin Rate
Prep Time: 20 minutes
Cook Time: 10 minutes
Chill Time: 10 minutes
Total Time: 30 minutes
Servings: 10 treats
Author: EmilyFabulous

Equipment

  • large pot
  • 9×13 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 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.

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

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Did you make these Halloween Frankenstein Rice Krispie Treats?

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