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Make Halloween Rice Krispie Treats with leftover Halloween candy! Gooey, sweet krispie treats loaded with candy corn, M&M’s, sprinkles, and a white chocolate drizzle with spooky edible eyeballs. A classic treat decorated up for the holiday!

For more ways to use up leftover candy be sure and try these Leftover Halloween Candy Cookie Bars or Halloween Popcorn Balls.

A pan of cereal bars decorated for halloween

Rice Krispie Treats Recipe For Halloween With Candy

I love making fun treats for the holidays with all the leftover candy! These crispy cereal treat bars are so gooey and soft, and loaded with all the good stuff like candy corn, m&m’s, sprinkles, and edible eyeballs.

No Halloween celebration is complete without these fun and colorful bars that kids of all ages will love. Perfect for classroom parties, family gatherings, friends, or just because!

A serving spoon holding a square serving of this recipe on it.
Stack of crispy cereal bars with candy.

Ingredients Needed

  1. Butter : Either unsalted butter or salted butter will work well, whichever you prefer. I always use salted butter when baking.
  2. Mini Marshmallows : The recipe calls for 8 cups of mini marshmallows so be sure and buy the larger bag of mini marshmallows. The smaller 10 ounce bag only has about 6 cups in it which won’t be enough.
  3. Vanilla Extract : For the best flavor I recommend only using pure vanilla extract.
  4. Rice Krispies Cereal : Generic brands or the name brand all work just fine.
  5. Ghoul’s Mix Halloween M&M’s
  6. Candy Corn
  7. Halloween Sprinkles
  8. White Almond Bark OR White Melting Wafers
  9. Edible Eyeballs
Labels ingredients for this recipe

How To Make It

In a large pot, over low heat, melt the butter. Once melted, add in the mini marshmallows and continue cooking and stirring until the marshmallows are completely melted and smooth.

Process images for this recipe

Next, stir in the vanilla extract and mix until it’s combined well.

Turn off the heat and stir in the Rice Krispie cereal until combined well and all the cereal is coated.

Process images for this recipe

Let the rice krispie treat mixture sit and cool for 2-3 minutes before adding in the candy.

Stir in 1/2 cup of m&m’s, 1/2 cup of candy corn, and 2 tablespoons of the sprinkles. Stir gently to combine.

Press the Rice Krispie mixture into the prepared pan. Be careful not to heavily press or smash the Rice Krispie treats into the pan or else they will tough and dry.

Process images for this recipe

Press the remaining candy and sprinkles over top. You may have to gently press the candy into the bars to get them to stay.

Melt the almond bark or melting wafers in the microwave according to the package directions. Place the melted chocolate into a sandwich Ziploc bag and snip the bottom corner off. Drizzle the melted chocolate over top the bars and immediately press the candy eyeballs into the chocolate lines.

Process images for this recipe

Allow the krispie treat bars to sit at room temperature for about 15-20 minutes for the chocolate drizzle to set.

Process images for this recipe
Process images for this recipe

Cut into squares and serve!

Substitution & Variation Ideas

  • Half Plain Rice Krispies + Half Chocolate Krispies : Use half and half of the plain rice krispies cereal and half of the chocolate krispies cereal.
  • Chocolate Lover’s Treats : Use all chocolate krispies cereal, use a chocolate drizzle, and add in some chocolate candies like M&M’s, chopped candy bars, chocolate sprinkles, etc.
  • Colored Candy Melt Drizzle : Instead of the white drizzle use any colored candy melts like neon orange, green, or purple for Halloween colors.
  • Candy : Use any small shaped candy you want for these rice krispy treats. There are so many fun & colorful options at the store around this time year so pick your faves and add them in. Make sure you use the same amount of candy that’s called for in the recipe which is equal to 2 cups of candy.
hero shot of the krispie treat cereal bars with Halloween candy on them.

How To Store Leftovers

Store the Rice Krispie treats at room temperature, inside an airtight container, for 3-5 days. I think Rice Krispies taste best within the first couple days as they are fresher and softer.

hero shot of the krispie treat cereal bars with Halloween candy on them.
hero shot of the krispie treat cereal bars with Halloween candy on them.

Tips For Success

  • To make pressing the gooey and sticky Rice Krispie treat mixture into the pan easier, spray a piece of parchment paper or wax paper with nonstick cooking spray (only one side of it) and then use it to lightly press the mixture into the pan. The side that has the spray on it should be touching the krispie treat. Keep your hands on the clean side. You can also use the underside of the butter wrapper to press the treats into the pan.
  • Leave the heat on low when melting the butter and marshmallows. Low and slow is the key to the best Rice Krispies. Be sure to stir it frequently to avoid the marshmallows form burning and to keep them smooth.
  • When pressing the treats into the pan it’s so important to press them very gently and lightly. You never want to firmly press and compact them into the pan. Pressing too hard or firmly can result in chewier, denser, and drier rice krispie treats.
Squares of this treat on a white background.

More Halloween Treats

Try These Other Rice Krispie Treats

hero shot of the krispie treat cereal bars with Halloween candy on them.
Together As Family Logo

Halloween Rice Krispie Treats


Author Jessica – Together as Family
Course Dessert
Cuisine American
Prep Time 5 minutes
Cook Time 15 minutes
Set Time 15 minutes
Total Time 35 minutes
Servings 15
Make Halloween Rice Krispie Treats with leftover Halloween candy! Gooey, sweet krispie treats loaded with candy corn, M&M's, sprinkles, and a white chocolate drizzle with spooky edible eyeballs. A classic treat decorated up for the holiday!

Ingredients
  

  • 1/2 cup (1 stick) butter
  • 8 cups mini marshmallows
  • teaspoons vanilla extract
  • 8 cups Rice Krispies cereal
  • 1/2 cup Halloween M&M's
  • 1/2 cup candy corn
  • 2 tablespoons Halloween sprinkles

Decorations

  • 1/2 cup Halloween M&M's
  • 1/2 cup candy corn
  • 2 blocks white almond bark (*see notes)
  • 1 tablespoon Halloween sprinkles
  • edible candy eyeballs

Instructions

  • In a large pot, over low heat, melt the butter. Once melted, add in the mini marshmallows and continue cooking and stirring until the marshmallows are completely melted and smooth.
    1/2 cup (1 stick) butter, 8 cups mini marshmallows
  • Next, stir in the vanilla extract and mix until it's combined well.
    1½ teaspoons vanilla extract
  • Turn off the heat and stir in the Rice Krispie cereal until combined well and all the cereal is coated.
    8 cups Rice Krispies cereal
  • Let the rice krispie treat mixture sit and cool for 2-3 minutes before adding in the candy.
  • Stir in 1/2 cup of m&m's, 1/2 cup of candy corn, and 2 tablespoons of the sprinkles. Stir gently to combine.
    1/2 cup Halloween M&M's, 1/2 cup candy corn, 2 tablespoons Halloween sprinkles
  • Press the Rice Krispie mixture into the prepared pan. Be careful not to heavily press or smash the Rice Krispie treats into the pan or else they will tough and dry.
  • Press the garnish/decorating candy over top. You may have to gently press the candy into the bars to get them to stay.
    1/2 cup Halloween M&M's, 1/2 cup candy corn
  • Melt the almond bark or melting wafers in the microwave according to the package directions. Place the melted chocolate into a sandwich Ziploc bag and snip the bottom corner off. Drizzle the melted chocolate over top the bars and immediately add the sprinkles and press the candy eyeballs into the chocolate lines.
    2 blocks white almond bark, 1 tablespoon Halloween sprinkles, edible candy eyeballs
  • Allow the krispie treat bars to sit at room temperature for about 15-20 minutes for the chocolate drizzle to set.
  • Cut into squares and serve!

Notes

Almond Bark : Use 2-3 squares of vanilla almond bark for the chocolate drizzle OR about 1/2 cup white melting wafers (Ghiradelli brand) or 1/2 cup white candy melts. Any of those options will work just fine. You can use white chocolate chips in a pinch, however, I suggest adding about 2 teaspoons of coconut oil or shortening to help it melt smoother and not seize up in the microwave.
Tip : To make pressing the gooey and sticky Rice Krispie treat mixture into the pan easier, spray a piece of parchment paper or wax paper with nonstick cooking spray (only one side of it) and then use it to lightly press the mixture into the pan. The side that has the spray on it should be touching the krispie treat. Keep your hands on the clean side. You can also use the underside of the butter wrapper to press the treats into the pan.
Low & Slow : Leave the heat on low when melting the butter and marshmallows. Low and slow is the key to the best Rice Krispies. Be sure to stir it frequently to avoid the marshmallows from burning and to keep them smooth.
Don’t Press Hard : When pressing the treats into the pan it’s so important to press them very gently and lightly. You never want to firmly press and compact them into the pan. Pressing too hard or firmly can result in chewier, denser, and drier rice krispie treats.
 

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