These Candy Bar Rice Krispie Treats are the perfect Halloween treat, or a great way to use up your Halloween candy! Easy and quick to make with simple pantry ingredients, they’re perfect to serve at parties!

Candy rice crispy treats cut into squares

I have got the perfect Halloween treat for you, that kids and adults will all love! Fun to make, it’s a great way to use up all the candy collected from trick or treating!

How to Make These Candy Bar Rice Krispie Treats

  • Spray a 13×9-inch baking pan with nonstick cooking spray.
  • Make one aluminum foil sling by cutting one piece of foil 18-inches long and folding it 8-inches wide. Fit the foil into the length of the pan, pushing it against the sides and corners of the pan. The excess should hang over about 2-inches on the sides.
  • Cut another piece of foil 14-inches long ((if using extra large foil, fold it to a 12-inch width.) and fit it, perpendicular, over the first sheet. Again, the foil should have an excess of a couple of inches on each end.
  • Spray the foil pieces with nonstick cooking spray.
  • Spray a rubber spatula with non-stick cooking spray.
  • Cut the candy bars into 8 pieces each and combine all candy in a medium-size mixing bowl. Mix well.
  • Melt the butter in a large Dutch oven set over medium-low heat. Add marshmallows, vanilla and salt. Cook and stir with sprayed spatula (re-spraying as needed) about 3 minutes or until marshmallows are just melted.
  • Remove from the heat and stir in cereal and half of the candy mixture. Stir until the candy is fully incorporated.
  • Spray the spatula or spray your hands and pour the mixture into the prepared pan. Press the Rice Krispie/marshmallow mixture evenly into the pan. Top with the remaining candy and lightly press the candy into the cereal mixture.
  • Set the Rice Krispie Treats on a cooling rack and let sit for 1 hour to firm. After an hour, lift the Krispies by the foil sling and return to the cooling rack to cool completely. Cut into equal-sized 12-24 bars.

Candy rice crispy treats before being cut

Close up of the candy on top of the baked rice crispy

Loaded Rice Krispie Treats

I love how colorful and fun these treats are, and they’re a great recipe to get the kids to help with too! I use M&Ms, Twix, Snickers and Peanut Butter Cups, but you can use your favorite chocolate candies! They take no time at all to make and bake, you just have to be patient and let them cool before you eat them!

The best rice krispie treats!

These treats are everything that a rice krispie bar should be! Deliciously crunchy and chewy and perfect for any sweet tooth! The recipe makes a big batch, so they’re great to hand out to the neighborhood kids this Halloween.

Try these other rice krispies recipes too!

Close up of the candy covered squares

rice crispy squares stacked on top of eachother

How long do rice krispie treats stay fresh?

Once the rice krispie treats have cooled to room temperature, store then in an airtight container at room temperature. They will keep fresh for around a week. Be sure to make a double batch!

Top Tips to Make This Recipe

  • Feel free to whatever chocolate based candy you have left over!
  • Line a pan with foil and spray with cooking oil for easy removal.
  • Allow the krispies to cool completely before serving.

close up of the stacked squares

Candy rice crispy treats on a cooling rack

Be sure to check out these other Halloween treats!

Recipe Card

Candy Bar Rice Krispie Treats Recipe

4.80 from 10 votes
Prep: 15 minutes
Cook: 10 minutes
Cool: 1 hour
Total: 1 hour 25 minutes
Servings: 24 people
Author: Becky Hardin
candy bar rice crispy treats cut into squares on cooling rack
These Candy Bar Rice Krispie Treats are the perfect Halloween treat, or a great way to use up your Halloween candy! Easy and quick to make with simple pantry ingredients, they're perfect to serve at parties!
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Ingredients 

  • 10 mini Twix candy bars 100 grams, chopped (about 1¼ cups)
  • 10 mini Snickers candy bars 90 grams, chopped (about 1¼ cups)
  • ¾ cup mini M&M’s 133 grams
  • ¾ cup mini Reese’s Peanut Butter Cups 104 grams, halved
  • 8 tablespoons unsalted butter 113 grams (1 stick)
  • 20 ounces jumbo marshmallows 567 grams (2 packages)
  • 2 teaspoons pure vanilla extract 8 grams
  • ¼ teaspoon kosher salt
  • 10 cups Rice Krispies cereal 283 grams (10 ounces)

Instructions 

  • Spray a 9x13-inch baking pan with nonstick cooking spray.
  • Make one aluminum foil sling by cutting one piece of foil 18 inches long and folding it 8 inches wide. Fit the foil into the length of the pan, pushing it against the sides and corners of the pan. The excess should hang over about 2 inches on the sides.
  • Cut another piece of foil 14 inches long (if using extra-large foil, fold it to a 12-inch width) and fit it, perpendicular, over the first sheet. Again, the foil should have an excess of a couple of inches on each end.
  • Spray the foil pieces with nonstick cooking spray and spray a rubber spatula with nonstick cooking spray.
  • Combine all candy in a medium-size mixing bowl. Mix well.
    10 mini Twix candy bars, 10 mini Snickers candy bars, ¾ cup mini M&M’s, ¾ cup mini Reese’s Peanut Butter Cups
  • Melt the butter in a large Dutch oven set over medium-low heat. Add marshmallows, vanilla, and salt. Cook and stir with the sprayed spatula (re-spraying as needed) until the marshmallows are just melted, about 3 minutes.
    8 tablespoons unsalted butter, 20 ounces jumbo marshmallows, 2 teaspoons pure vanilla extract, ¼ teaspoon kosher salt
  • Remove from the heat and stir in cereal and half of the candy mixture. Stir until the candy is fully incorporated.
    10 cups Rice Krispies cereal
  • Spray the spatula or spray your hands and pour the mixture into the prepared pan. Press the Rice Krispie/marshmallow mixture evenly into the pan. Top with the remaining candy and lightly press the candy into the cereal mixture.
  • Set the Krispie Treats on a cooling rack and let sit for 1 hour to firm. After an hour, lift the Krispies by the foil sling and return to the cooling rack to cool completely. Cut into 24 equal-sized bars.

Video

Becky's Tips

  • Feel free to whatever chocolate-based candy you have left over!
  • Line a pan with foil and spray with cooking oil for easy removal.
  • Allow the krispies to cool completely before serving.
Storage: Store candy bar rice krispie treats in an airtight container at room temperature for up to 1 week.
Serving: 1barCalories: 272kcalCarbohydrates: 44gProtein: 3gFat: 10gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 1gCholesterol: 12mgSodium: 158mgPotassium: 68mgFiber: 1gSugar: 27gVitamin A: 921IUVitamin C: 7mgCalcium: 25mgIron: 4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this? Leave a comment!

Meet Becky Hardin

Becky Hardin is a wife and mother living in Saint Louis Missouri. She founded The Cookie Rookie in 2012 as a creative way to share recipes. Now, she is a trusted resource for easy cooking around the world, being featured in Taste of Home, The Kitchn, ABC’s Home and Family, and more. Here at The Cookie Rookie she is the editor in chief of all recipes and continues to enjoy sharing her passion for cooking for busy families. She has since founded two additional food blogs, Easy Chicken Recipes and Easy Dessert Recipes.

4.80 from 10 votes (5 ratings without comment)
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10 Comments
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Eden
Eden
September 23, 2019 10:13 am

These were so great!! MY kids went crazy for them and they’re so fun with the candy!5 stars

Becky Hardin
Becky Hardin
September 24, 2019 1:21 pm
Reply to  Eden

Yay! Thanks, Eden!

Emily
Emily
September 23, 2019 10:00 am

These are divine! We so have to make them this weekend!5 stars

Becky Hardin
Becky Hardin
September 24, 2019 1:21 pm
Reply to  Emily

Enjoy!!! Thanks, Emily!

Toni
Toni
September 23, 2019 8:53 am

These are really perfect treats! My kids loved them!5 stars

Becky Hardin
Becky Hardin
September 24, 2019 1:22 pm
Reply to  Toni

Awesome! Thanks, Toni!

Aimee Shugarman
Aimee Shugarman
September 23, 2019 8:28 am

Seriously you can’t go wrong with these. My favorite dessert :)5 stars

Becky Hardin
Becky Hardin
September 24, 2019 1:24 pm

Thanks, Aimee! I agree :)

Paige
Paige
September 23, 2019 8:22 am

You have no idea how much I love Rice Krispie Treats – more than the sun, moon and stars :)
So this recipe looks AMAZING to me, and I’ve never thought of it, and can’t wait to give it a try. YES!5 stars

Becky Hardin
Becky Hardin
September 24, 2019 1:24 pm
Reply to  Paige

Thanks, Paige!! Enjoy!!