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How to Make Frankenstein Treats for Halloween 🎃

Updated: Jun 19, 2022

These Frankenstein rice bubble treats are so easy for Halloween, no baking is required so even the kids can help! Check your fridge and pantry to see what ingredients you already have, and see below for our simple instructions...


  1. Rice Bubbles | SHOP HERE

  2. White Marshmallows | SHOP HERE

  3. Salted Butter | SHOP HERE

  4. Green Food Dye Colouring | SHOP HERE

  5. Royal Icing Pen in colour Black | SHOP HERE

  6. Candy Eyes | SHOP HERE


- 1 x baking tray

- baking/parchment paper

- square cookie cutter or sharp knife

- cooking spray oil

- microwave

- rolling pin to flatten out mixture


- 350 grams of Rice Bubbles

- 284 grams of Marshmallows

- 57 grams of Salted Butter


Step One: Line a baking tray with baking/parchment paper and put to the side.

Step Two: Spray a large bowl with cooking spray oil and pour in 350g of rice bubbles. Put to the side.

Step Three: In a medium/large microwave-safe bowl, place 284g of marshmallows and 57g of butter and microwave them on high for 1-2 minutes. Open microwave, stir contents and place back in on high for an additional 15 seconds. Remove bowl carefully from microwave (careful with children- contents will be HOT!) and stir thoroughly to ensure marshmallows have melted and you have a smooth consistency.

Step Four: Add 1-2 small drops of green food colouring into the melted marshmallow bowl and stir until you get a nice green colour! We are recreating Frankenstein here, so aim for a 'sickly' coloured green.

Step Five: It's time to transfer your green marshmallow bowl contents into your rice bubbles bowl! Pour the mixture in and stir it very well. It will be VERY sticky, so have patience! Once you have stirred them together, using a spatular, transfer your sticky green treat on to the baking tray and form a flat rectangle as best you can. The thickness should be approx. 1 and a half cm thick.

Step Six: Pop the tray in the fridge for 20-30 mins to set it!

Step Seven: After 20-30 mins, remove your tray from the fridge and grab your square cookie cutter or sharp knife. Use the cookie cutter or knife to cut approx. 8-10 neat, square shaped treats!

Step Eight: It's time to decorate! The best part! Use your black icing pen to draw Frankenstein's mouth, and use two dots of icing to stick on your candy eyes. You can also draw his hairline and hair!

Step Nine: Enjoy!

So that's it! We hope you enjoyed our little blog post on how we make Frankenstein No Bake Rice Bubble Treats for Halloween! ♡ Any questions or comments? We'd love to hear from you! Tag us at @thejohannessenfamily or contact us!

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