Frankenstein Krispie Treats

Frankenstein Rice Krispie Treats are super fun, cute, and delicious! Kids of all ages will love them and they make the perfect addition to your Halloween party! So easy to make right in your microwave and decorated with halloween colored candies and chocolate, they will disappear right before your eyes! These are also great to make and send to school with your children for their holiday celebration with their classmates.


To make this recipe you will need: Microwave, Marshmallows, Butter, Green Food Coloring, gumdrops, halloween colored jelly beans, and pretzels.


Frankenstein Rice Krispie Treats


The first time I made these rice krispie treats was for a Grown-up Halloween Party that I hosted with my former daughter in law. She is a huge fan of Halloween and what more fun can you have with your family than to throw a fun Halloween party!


Frankenstein Rice Krispie Treats


If you follow me on Instagram and Facebook, then it is likely you have seen that we are in the midst of kitchen renovation! I finally have a sink, oven and microwave, but still don’t have a working cooktop yet. So, since I wanted to make these little treats, I needed to use the microwave.


Frankenstein Rice Krispie Treats

Use the microwave to make these Frankenstein Rice Krispie Treats super quick and easy to make!

I don’t make rice krispie treats too often anymore. Mainly because we are trying to eat healthier. I pretty much leave the sugar alone, but I know when I make them going forward I will always use the microwave. It is less mess and so quick!

Frankenstein Rice Krispie Treats

When do you add the food coloring?

Always add the food coloring to your marshmallow mixture after microwaving the first two minutes. You may not need to microwave any additional time if your marshmallow and butter melted completely enough to combine (mine only took 2 minutes). Once you stir the food coloring in, it should look like the photo above.


Frankenstein Rice Krispie Treats


I like to use an 8×8 glass pan for rice krispie treats. I like to make them thicker and an 8×8 pan will do just that! Once you have added the rice krispies to the marshmallow mixtures, you will transfer them to a well buttered pan and pat them down with a spoon that you have coated with butter Be sure to press down to pack the treats into the pan. Once they have been packed and scored, go ahead and refrigerate them so they will firm up before decorating.


Frankenstein Rice Krispie Treats

Candy I used when making Frankenstein Rice Krispie Treats.

If you don’t have these candies, that is fine, you can improvise! Back when I first made these for our adult halloween party, I painted the face on and didn’t use candy. For the ears I used pretzels and mini marshmallows.

Note: This post contains affiliate links for products I used when making this recipe.

PIN IT! Frankenstein Rice Krispie Treats! (Microwave Method)

Frankenstein Krispie Treats

Frankenstein Rice Krispie Treats

Frankenstein Rice Krispie Treats

Frankenstein Rice Krispie Treats made in the microwave with the traditional rice krispie treat recipe! Halloween is a whole lot of fun with Franken Treats!
5 from 1 vote
Print Pin Rate
Cuisine: Americain
Keyword: Frankenstein, Halloween, Halloween Treats, Rice Krispie Treats, Rice Krispies
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Servings: 12 Rice Krispie Treats
Calories: 169kcal


  • 40 Large Marshmallows
  • 3 tablespoons salted butter
  • 6 cups rice krispie treats
  • green food gel coloring
  • assorted Halloween candy for decorating


  • Butter an 8x8 pan. Set aside.
  • Place marshmallows and butter in large microwave safe bowl.
  • Measure out six cups rice krispies and place in bowl, set aside.
  • Microwave marshmallows and butter for 2 minutes. Remove from microwave and stir. Add food coloring. I did not measure the food coloring, I added it and adjusted to bring it to the green I wanted. I may add more food coloring if I were to make this again to make the treats greener.
  • If your marshmallow mixture needs to be microwaved longer, place back in microwave and cook for another 60 seconds.
  • Remove from microwave and stir in rice krispies until coated with marshmallows.
  • Turn rice krispies mixture out into prepared 8x8 pan and press down to pack into pan with a spoon. Coat the back of the spoon with butter to prevent sticking.
  • Score the rice krispie treats (12 pieces) and refrigerate until firm.
  • Remove treats from refrigerator and decorate with chocolate and candies as desired.


Nutrition information calculated using myfitnesspal is provided as a courtesy, but will vary depending on the specific brands of ingredients you use. Please consult with your doctor regarding specific health needs.
Candy is not calculated in the nutrition information for this recipe.


Serving: 1rice krispie treat | Calories: 169kcal | Carbohydrates: 33g | Protein: 4g | Fat: 3g | Saturated Fat: 2g | Cholesterol: 8mg | Sodium: 127mg | Sugar: 17g

About the Author: Shelby Law Ruttan

Shelby is the author/owner of Grumpy's Honeybunch. Established in 2007, she shares and preserves family recipes as well as recipes for cooking light and keto. She is an experienced, self-taught home cook who loves to share recipes with others. You can see her work on websites such as Veal Made Easy, Parade, Community Table, SoFab Food, Yummly, and FoodGawker.


  1. Liz September 10, 2018 at 8:23 am - Reply

    I love that these are easy enough for non-crafty folks like me! I never thought of scoring these first, but a great tip!

  2. Lane Patten September 10, 2018 at 2:39 pm - Reply

    These are just so darn fun! Cute and I bet they test amazing also!

  3. Dan from Platter Talk September 11, 2018 at 9:36 pm - Reply

    I can’t decide if these are more scary or cute; how can they be both?! Either way, what a fun and delicious idea for Halloween! So nicely done!

  4. Carlee September 12, 2018 at 8:04 am - Reply

    These are cute as can be! Little Dude and I need to make these for his friends this year!

  5. Toni | Boulder Locavore September 13, 2018 at 12:20 am - Reply

    This is really cute! Would love to try this!

  6. chellie September 13, 2018 at 2:27 pm - Reply

    Every kid would eat this up! Haha, see what I did there? 😉 These are so fun.

  7. Anonymous October 8, 2019 at 12:57 pm - Reply


  8. […] Everyone loves rice krispie treats, right? Well kids and adults alike will love to gobble down these Frankenstein Rice Krispie Treats! […]

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Shelby Welcome! I'm Shelby, author of Grumpy's Honeybunch. I have been sharing family favorite recipes since 2007. I started the Keto Diet in October 2017 and since then I have been creating Keto ... read more

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