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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Why I Love This Recipe
I love this Halloween Frankenstein Rice Krispie Treat Recipe because it's so easy to make, it's no-bake, and it is also fun to put together. I also like that this recipe is kid-friendly and a great Halloween activity for family or friends just like my Ghost Cake Pops.
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.
How to Make Frankenstein Rice Krispie Treats
Step 1: 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.
Step 2: Remove the treats from the pan and cut them into rectangles. I trimmed off the curved edges first to get nice straight lines.
Step 3: Make the frosting by creaming the butter and shortening in a stand mixer, then mix in vanilla and salt. Add powdered sugar one cup at a time, alternating with a tablespoon of cold water, mixing well each time. Finish with green gel food coloring.
Step 4: Frost each rectangle with a thick layer of frosting and place in the fridge for 15 minutes to firm. This makes decorating easier.
Step 5: Create the hair and mouth with black decorating frosting. Add eye candies, sprinkles, and any other decoration you would like.
Step 6: 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!
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.
Expert Tips for Decorated 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 them.
Recipe FAQs
Yes, you can add green food coloring to the rice krispie treats if desired. Add the food coloring to the marshmallow mixture before adding the cereal.
Store your Halloween treats in an airtight container at room temperature for a few days.
To make these gluten-free, use a certified gluten-free crispy rice cereal, ensure your marshmallows are gluten-free, and double-check any decorations you add.
To keep the treats from sticking to your hands, spray a little non-stick spray or rub some butter on your hands before pressing them into the pan.
More Fun Halloween Recipes
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Frankenstein Rice Krispie Treats
Equipment
- large pot
- 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.
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.
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.
- 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.
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
Any nutrition calculations are only estimates using online calculators. Please verify using your own data.
Katie says
Perfect cute holiday treat! It's easy to make and so much fun!
nancy says
super cute idea and the kids really enjoyed making it for thier bake sale!
Katie says
Love this halloween treat! I can't wait to make them for my annual party!
Natalie says
These Frankenstein Rice Krispie Treats look amazing! They will be perfect for my daughters party, thanks!
Shelby says
Oh my gosh these are so cute! The best Halloween party dessert!
Emily says
Thanks, Shelby!
Amy Liu Dong says
I love how cute and easy to make this treat for the kids. I am sure they will love this!
Emily says
They will! Have fun making them 😊
Cindy Mom the Lunch Lady says
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!
Emily says
They are totally fun, thanks for checking them out!