Make these Monster Rice Krispie Treats for Halloween — soft, chewy Salted Caramel Rice Krispie Treats turned green and topped with candy eyes and sprinkles for the ultimate spooky-sweet bite!

These Easy Halloween Monster Rice Krispie Treats take your favorite childhood dessert and give it a frightfully fun makeover! A buttery, salted caramel Rice Krispie base gets tinted green and topped with candy eyes and Halloween sprinkles for a playful, party-ready dessert that’s impossible to resist. The Salted Caramel Rice Krispie base is incredibly tasty!

When I was brainstorming a fun Halloween treat this year, I knew I wanted something easy but still eye-catching. These little monsters came to life with just a drop of green food coloring and some candy eyes—and they’ve quickly become a new family favorite.

Do you see it too? After I took the picture below, I spotted a little monster staring back at me! Look by the yellow sprinkle near the top right. It made me laugh when I noticed it later.

Ingredients Needed to Easy Halloween Monster Rice Krispie Treats:

Rice Krispie Cereal
Butter
Dark Brown Sugar
Heavy Whipping Cream
Light Corn Syrup
Vanilla Extract
Kosher Salt
Mini Marshmallows
Green Food Coloring (Gel is best)
Candy Eyes (different sizes)
Halloween Sprinkles

How to Make Easy Halloween Monster Rice Krispie Treats

Prepare the pan: Lightly coat a 9×13-inch pan with nonstick spray and set aside.
Mix the cereal: In a large, heatproof bowl, combine the Rice Krispies and 1 cup of mini marshmallows.
Make the caramel: In a large saucepan, melt the butter over medium-high heat. Reduce to medium and stir in the brown sugar, whipping cream, and corn syrup. Cook for about 7 minutes, stirring often, until thick and syrupy.
Add color and flavor: Remove from heat and stir in vanilla, salt, and a few drops of green food coloring until evenly tinted.
Melt the marshmallows: Add the remaining marshmallows to the hot caramel mixture and stir until melted and smooth.
Combine: Pour the mixture over the Rice Krispies and stir until evenly coated.
Press and decorate: Press firmly into the prepared pan, then top with candy eyes and Halloween sprinkles.
Cool and cut: Let cool completely before cutting into squares.

Tips for Success:

If your marshmallows don’t melt completely: You can place the pot back over low heat for a minute, stirring until everything is smooth and fully melted.
Work quickly: Once the marshmallows are melted, move fast! The mixture firms up as it cools, so have your pan and decorations ready.
Don’t press too hard: Gently press the mixture into the pan—too much pressure can make the treats dense instead of soft and chewy.
Use buttered hands or wax paper: Lightly grease your hands or use a sheet of wax paper to press the mixture without it sticking.
Add decorations right away: Sprinkle on the candy eyes and Halloween sprinkles while the treats are still warm so they stick perfectly.
Cool completely before cutting: This helps the treats hold their shape and gives you clean, even squares.

If you’re looking for a quick, crowd-pleasing Halloween dessert, these Monster Rice Krispie Treats are it! They’re soft, chewy, and perfectly spooky with their candy eyes and festive sprinkles. Everyone will love them—from kids to grown-ups!

Enjoy!

-Check out The Best Halloween Party Treats Recipes Here!-

Easy Halloween Monster Rice Krispie Treats

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Prep: 15

Cook: 10

Total: 25

Ingredients

▢ 6 cups Rice Krispie Cereal
▢ 1/2 cup butter (unsalted)
▢ 1/3 cup dark brown sugar
▢ 1/4 cup heavy whipping cream
▢ 1 tablespoon light corn syrup
▢ 1 teaspoon vanilla extract
▢ 3/4 teaspoon kosher salt
▢ 10 oz plus a heaping cup mini marshmallows

Instructions

Lightly coat a 9x13-inch baking pan with nonstick cooking spray and set aside.
In a large, heatproof bowl, combine the Rice Krispies and 1 cup of mini marshmallows. Set aside.
In a large, heavy-bottomed saucepan, melt the butter over medium-high heat, stirring constantly. Once melted, reduce the heat to medium and add the brown sugar, whipping cream, and corn syrup. Cook for about 7 minutes, stirring frequently to prevent scorching.
When the caramel is thick and syrupy, stir in the vanilla extract and salt, then remove from the heat and add green food coloring and mix until evenly tinted. Stir in marshmallows, stirring constantly until completely melted.
Quickly pour the mixture over the Rice Krispies and stir until everything is evenly coated. Press the mixture firmly into the prepared pan, then decorate the top with candy eyes and Halloween-colored sprinkles for a fun monster look.
Allow the treats to cool completely before cutting into squares.

The nutrition facts provided are calculated using a third-party tool and are estimates only. Actual nutritional content may vary based on the ingredients and brands you use, as well as portion sizes. For accurate results, please consult a registered dietitian or nutritionist.