Festive, fun, and ready in minutes, Easy Halloween Rice Krispie Treats are the perfect no-fuss sweet for spooky season. With spooky monster faces and playful decorations, these chewy marshmallow bars bring Halloween cheer to parties, lunchboxes, or last-minute gatherings.

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I've been having so much fun making Halloween treats this year! I started with the Binx Black Cat cookies, then made Halloween Popcorn Balls, Monster Cookies, Spooky Spider Cookies and now these fun Frankenstein and Mummy treats!
Why This Recipe Works
- Quick: Ready in under 30 minutes from start to finish
- Delicious: The classic chewy marshmallow flavor everyone loves
- Festive: Easily customized with Halloween sprinkles, candy eyes, or colored drizzle
- Portable: Perfect for parties, bake sales, or school treats
The hardest part of making Rice Crispy treats is waiting for them to cool! But at least you can lick the stirring spoon and the big pot you stirred everything in, but be careful and don't burn yourself!
For this recipe, I took my amazingly delicious bakery-style Rice Krispies Treats and turned them into Halloween Rice Krispies Treats!
For more cereal treat recipes, make sure to check out my Golden Graham S'mores Bars, Cinnamon Toast Crunch Bars, and these delicious Fruit Loop Bars!

What You Need For This Recipe
Butter: I use unsalted and then add a little salt to the melted marshmallows and butter, but if you use salted butter, you can omit the salt from the recipe.
Mini-Marshmallows: Mini marshmallows melt quickly and more evenly. However, you can use regular-sized marshmallows too.
Vanilla: This takes the Rice Krispies treats from basic to extra tasty!
Puffed Rice Cereal: I typically use the name-brand Rice Krispies, but off-brand cereal works great, too!
Decorations: For these treats, I decorated them as Mummy and Frankenstein Monsters using light green candy melts, bright white candy melts, candy eyes, and black buttercream frosting. I also used a few piping tips (Wilton #3 Writing Tip and Wilton #104 petal tip) for decorating.
Refined Coconut Oil/Shortening: This is used only if your candy melts aren't melting quite as smoothly as they should.

Short on Time?
You can easily use premade store-bought Rice Krispies treats and then just decorate them. Homemade just tastes WAY better, but store-bought is so easy. Your choice!
How to Make Halloween Rice Krispie Treats?

- Step 1: In a large saucepan pan melt the butter on low heat. Once melted remove stir in the vanilla and salt.

- Step 2: Then add in the marshmallows and stir until fully melted.

- Step 3: Once melted, remove from heat and stir in cereal.

- Step 4: Press the mixture into a greased baking dish and allow to cool.
How to Make Rice Krispie Frankenstein Treats:

- Step 5: Melt Green Candy Melts.

- Step 6: Cut rice krispies into squares and dip into melts.
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- Step 7: Gently place the eyes onto the dipped treats before the green candy melts set up.

- Step 8: Using a piping bag with a Wilton #3 writing tip and pipe on the hair and stitches
How to Make Mummy Rice Krispie Treats:

- Step 9: Melt your bright white candy melts and then place in a piping bag with a Wilton #104 petal tip.

- Step 10: Cut Rice Krispies into squares.

- Step 11: Put a little bit of candy melt on the back of each eye and press onto the rice crispy treat.

- Step 12: Then pipe lines using a Wilton #104 ruffle tip over the treat to mimic mummy wrappings.

Expert Tips
Thick or Thin Rice Krispies: If you want thinner rice crispy treated spread the rice crispy mixture in a larger pan to cool (like a 9x13 rimmed baking sheet), for thicker treats, use a 9x9 rimmed pan.
Black Frosting: If I'm making a big batch for my graveyard cake or some fun Halloween cupcakes, I'll use a little of the leftover for recipes like this. If I just need a small amount, I'll just buy black frosting from my grocery store.
Store-Bought Rice Krispies Treats: If you want a quick Halloween Treat, decorate premade Rice Krispies Treats! Not as tasty as homemade, but works in a pinch!
Other Halloween Rice Krispie Treat Ideas:
- Dracula: Pipe on some fangs, a widows peak, and add some red food gel as blood.
- Spider Web: Similar to my Spider Web Brownies- pipe on a web design coming from the corner of each treat.
- Monster: Dip the treat in purple candy melts, then add lots of candy eyes and Halloween sprinkles.
- Pumpkin: Color the Rice Krispies orange, then shape into balls. (Similar to my Christmas Rice Krispies Ornaments!) Add a green jelly bean for the stem and pipe on little Jack-o-Lantern faces
- Neon Green Food Gel: I love dying the melted marshmallows green (like in my Halloween Popcorn Balls!), to create a fun green rice crispy treat, but you can leave them white or try a different Halloween color!

Frequently Asked Questions
Place candy melts in a microwave-safe bowl with 1 tablespoon refined coconut oil or shortening.ย Microwave for 30 seconds at 50% power, stir, and repeat until melted.
If the candy melts are too stiff and not melting, add in more coconut oil 1 tbs at a time, stir, and repeat until you get the consistency you want.
Sometimes I've added 4 or 6 tablespoons of coconut oil/shortening to get the candy melts liquid enough. There is a point where you've microwaved the melts too much, and they burn and become crumbly and are past the point of use. That's why Iย recommend only microwaving for 30-second intervals at 50% power.
I've noticed different brands and even different microwaves can melt the candies differently.
I've used both. They both work well and taste fine.
If you make black frosting from scratch, simply make my dark chocolate frosting and add black food gel coloring to it.
Store-bought black frosting can be found in the baking aisle or the cake decorating aisle and comes in a tube. You will probably need several tubes to decorate these.
You can also use black food gel (found in the same place as the black frosting) for the stitches, but remember the edible gel doesn't harden, making it have the potential for more mess.

More Tasty Halloween Treats
If you like this recipe, make sure to check out all my Halloween Treats, and don't miss my easy Spider Cookies, Halloween Oreo Cookies, Black Cat Cookies, and this fun Cauldron Cocktail!
If you like this recipe, make sure to give it a 5-star review and leave a comment down below!
Also, don't forget to sign up for my newsletter, and make sure to follow along on Facebook, Instagram, and Pinterest!
Video

Halloween Rice Krispie Treats
Ingredients
- 4 Tbs butter
- 7 cups mini marshmallows
- ยผ tsp salt
- ยผ teaspoon vanilla
- 6 cups puffed rice cereal
- 12 oz bright/light green candy melts
- 6 oz bright white candy melts
- 2-4 tbs refined coconut oil or shortening
- candy eyes
- black buttercream frosting* see notes on how to make or substitutions
Instructions
- Line a baking sheet with parchment paper- set aside. Butter or spray with non-stick cooking spray a 9x13 baking dish- set aside.
- In a medium stock pot over medium-low heat, melt butter. Add in marshmallows. salt, vanilla, and stir until fully melted.4 Tbs butter, 7 cups mini marshmallows, ยผ teaspoon salt, ยผ teaspoon vanilla
- Once fully melted, remove from heat and stir in the puffed rice cereal.6 cups puffed rice cereal
- Press the Rice Krispies into a prepared 9x13 baking dish and let cool. Once the Rice Krispies are cooled and have set up cut them into 24 squares.
Frankenstein Rice Krispie Treats
- Melt the green candy melts in the microwave at 50% power. Heat for 30 seconds, stir, and repeat until the candy melts have completely melted. If the mixture is too thick (which I find to be most of the time), add in 1 tablespoon of coconut oil or shortening, stir thoroughly, and test the thickness. If still too thick, add more coconut oil, 1 teaspoon at a time, until it is your desired thickness. The candy melts should be fairly smooth and liquid.12 oz bright/light green candy melts, 2-4 tbs refined coconut oil
- Dip one of the broad sides of the Rice Krispies squares into the green candy melts and set on the parchment-lined baking sheet to harden. Right after dipping the Rice Krispies treats, place the eyes on them.candy eyes
- While the candy melts are setting up whip up a half batch of the easy black buttercream.black buttercream frosting*
- Using a piping bag filled with black frosting and a Wilton #3 writing tip, pipe on the hair and scars.
Mummy Rice Krispie Treats
- Melt the white candy melts in the microwave at 50% power. Heat for 30 seconds, stir, and repeat until the candy melts have completely melted. If the mixture is too thick (which I find to be most of the time), add in ยฝ tablespoon of coconut oil or shortening, stir thoroughly, and test the thickness. If still too thick, add more coconut oil, 1 teaspoon at a time, until it is your desired thickness. The candy melts should be fairly smooth and liquid.6 oz bright white candy melts, 2-4 tbs refined coconut oil
- Add a little of the candy melts to the back of the candy eyes and place two in each Rice Krispies square.candy eyes
- Place the white candy melts in a piping bag with a Wilton #104 tip and pipe on lines to look like mummy wrappings.
Notes
- ย To make black buttercream, simply whip up a half batch of my dark chocolate frosting and add several drops of black gel food coloring. You want the buttercream to be a dark grey color. Then let it sit for 10 minutes or so, and the color will darken to more of a black. Alternatively, you could buy black frosting from the store and use that.











Lisa Killian says
These are so cute and fun for Halloween! Such a great treat!
Nicole White says
I just love these and I have added them to my round up of Halloween desserts! Thank you so much for allowing me to share!!
Lisa says
Yay! Thanks for sharing <3!