Frankenstein Rice Krispie Treats are the perfect easy Halloween treat you have to make! They’re made with a simple Rice Krispie treat base, green vanilla frosting, chocolate frosting, and candy decorations.
Trust me, you’ll want to make them as soon as your favorite network starts playing reruns of Beetlejuice. You’ll love them because they’re so easy to make and super fun to decorate.
By the way, if you love cute and easy Halloween recipes, you’ll want to check out our spider cheeseballs, pretzel witch brooms, and Halloween dirt cups.
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Why You’ll Love This Recipe…
- They’re so cute and festive, which is perfect for Halloween parties, school events, and bake sales. So cute, they’ll stand out on any dessert table.
- So easy that they kiddos can help you make them. No special decorating techniques needed.
- Perfect last-minute option because you probably have all the ingredients in your kitchen.
Ingredients
- Rice Cereal – use fresh cereal.
- Marshmallows – mini marshmallows because they melt faster.
- Butter – unsalted butter.
- Vanilla Extract – we’ve tried real and imitation vanilla extract and recommend the real stuff. It adds a baker level quality.
- Salt – a pinch of salt makes them taste just a little sweeter.
- Green Frosting – we made homemade vanilla frosting with green food coloring. You could also use store-bought vanilla frosting.
- Brown or Black Frosting – for ease, we used store-bought chocolate frosting to make the face, stitches, and hair.
- Brown or Black Sprinkles – for the hair.
- M&M’s – for the eyes.
- Pretzels – for the bolts.
See the recipe card for quantities.
How to Make Frankenstein Rice Krispie Treats
Lightly spray a 9×13-inch pan with nonstick spray and set aside.
In a large pot over low heat, melt the butter and dissolve the salt.
Add the mini marshmallows and stir until completely melted and smooth. Remove from the heat.
Stir in the vanilla extract. Then fold in the Rice Krispies until evenly coated.
Transfer the mixture to the prepared pan. Use lightly buttered or damp hands to gently press the treats into an even layer. Don’t compact them, or the bars will turn dense.
Let cool for 1 hour, then cut into 16 squares.
Spread a smooth layer of green frosting over the front of each Rice Krispie treat, leaving a small strip at the top for the hair.
Refrigerate for 10 minutes, or until the frosting is firm. Place a piece of parchment paper over the frosting and gently smooth it with an offset spatula.
Pipe chocolate frosting across the top, slightly overlapping the green frosting, then create a zigzag hairline. Use a toothpick to fill in any gaps with frosting.
Pipe a straight mouth and add three short vertical stitches.
Press two brown mini M&M’s into the frosting for the eyes.
Using the chocolate frosting, pipe a short diagonal scar above one eye and add three or four stitches.
Sprinkle chocolate sprinkles over the chocolate frosting.
Break a pretzel stick in half, then insert one half into each side of the treat to create the neck bolts.
Refrigerate for 10–15 minutes, or until the frosting is set, before serving or packaging.
Top Tips
Add the sprinkles immediately after adding the hair for the frosting. Otherwise the frosting will set and the sprinkles will not set.
When drawing on the stitches, I found it better to lightly drag the frosting tip through the initial line of frosting. They tend to turn out better this way.
Storage
You can store these Frankenstein Rice Krispie Treats in an airtight container for up to 3 days.
Other No Bake Desserts You’ll Love
- No Bake Mixed Berry Cheesecake
- Strawberry Rice Krispie Treats
- Lemon Mousse Recipe
- Strawberry Cheesecake Dip
- Easy Oreo Delight
FAQ
Sure. You can do it a couple of ways. First, you could make the treat base and store them in an airtight container for a few days, then decorate later. Or you could decorate them completely and store them in an airtight container.
Yes! Store-bought frosting is a shortcut that will save you some time. But homemade frosting tastes way better, in my opinion.
There are two reasons for this. You either overheated the marshmallow mixture or you pressed the treats mix too firmly into the pan.
Frankenstein Rice Krispie Treats Recipe
Ingredients
- 6 Tbsp Unsalted Butter
- 16 Oz Mini Marshmallows
- 1 Tsp Vanilla Extract
- ¼ Tsp Kosher Salt
- 8 Cups Rice Krispie Cereal
- 2 Cups Green Frosting
- 1 Cup Chocolate Frosting Store-bought or homemade
- Chocolate Sprinkles
- Pretzel Sticks
- Brown Mini M&M's
Instructions
- Lightly spray a 9×13-inch pan with nonstick spray and set aside.
- In a large pot over low heat, melt the butter and dissolve the salt.
- Add the mini marshmallows and stir until completely melted and smooth. Remove from the heat.
- Stir in the vanilla extract. Then fold in the Rice Krispies until evenly coated.
- Transfer the mixture to the prepared pan. Use lightly buttered or damp hands to gently press the treats into an even layer. Don’t compact them, or the bars will turn dense.
- Let cool for 1 hour, then cut into 16 squares.
- Spread a smooth layer of green frosting over the front of each Rice Krispie treat, leaving a small strip at the top for the hair.
- Refrigerate for 10 minutes, or until the frosting is firm. Place a piece of parchment paper over the frosting and gently smooth it with an offset spatula.
- Pipe chocolate frosting across the top, slightly overlapping the green frosting, then create a zigzag hairline. Use a toothpick to fill in any gaps with frosting.
- Pipe a straight mouth and add three short vertical stitches.
- Press two brown mini M&M's into the frosting for the eyes.
- Using the chocolate frosting, pipe a short diagonal scar above one eye and add three or four stitches.
- Sprinkle chocolate sprinkles over the chocolate frosting.
- Break a pretzel stick in half, then insert one half into each side of the treat to create the neck bolts.
- Refrigerate for 10–15 minutes, or until the frosting is set, before serving or packaging.
Notes
- Make homemade frosting or tint store-bought frosting green with food coloring.
- Store in an airtight container for up to 3 days.
Nutrition
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