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What to Do With Leftover Halloween Candy: Easy Halloween Candy Cookie Bars

Halloween may be over, but there is still plenty of fun hiding in the candy bowl. If you’re wondering what to do with leftover Halloween candy, these soft and chewy Halloween Candy Cookie Bars are an easy way to turn extra chocolate bars and colorful candies into a homemade treat everyone will be happy to share.

This simple leftover Halloween candy recipe comes together in one pan using a buttery brown sugar cookie batter packed with pieces of your favorite trick-or-treat candy. Bake the bars in the Brownie Buddy® Baking Set for even results, then use its fitted plastic cutter to create 16 uniform squares. The set also includes a BPA-free lid for convenient storing and sharing.

Whether you need an easy post-Halloween dessert, a treat for the office, or a simple weekend baking project, this is one leftover candy recipe you’ll look forward to making every year.

Table of Contents

Halloween Candy Cookie Bars baked in the Brownie Buddy Baking Set

Cookie bars are one of the easiest things to make with leftover Halloween candy. Instead of portioning and baking multiple trays of cookies, you can spread the batter in one square pan, fold in your candy, and bake the entire batch at once.

They are also easy to customize. Every batch can be a little different depending on what remains in the trick-or-treat bucket. Chocolate bars add rich, melty pockets, while candy-coated chocolates bring color and a light crunch.

This recipe is especially helpful when you have several kinds of fun-size candy but not enough of any one variety to use on its own. Combine them in a single batch for an easy Halloween candy dessert that is ready to slice, store, and share.

The Best Candy for Halloween Candy Cookie Bars

Chocolate-based treats work especially well in this recipe because they can be chopped and folded easily into the cookie bar batter. Try favorites such as Snickers®, Reese’s®, Kit Kat® bars, and M&M’s®.

Use one variety or combine a few of the following:

  • Chocolate candy bars
  • Peanut butter cups
  • Caramel-filled chocolates
  • Candy-coated chocolates
  • Crisped rice chocolate bars
  • Chocolate wafer bars
  • Nougat-filled candy bars
  • Chocolate-covered toffee

Using a mix creates different textures and flavors in every square. Roughly chop larger candy bars, but leave small candy-coated chocolates whole to add more color.

For balanced results, choose two or three complementary varieties instead of adding every candy in the bowl. A combination of chocolate, peanut butter, and crisp candy pieces will give the bars plenty of flavor without becoming overly crowded.

Allergy note: If your candy contains peanuts or tree nuts, be sure to let anyone enjoying the bars know.

Gif of candy bars being thrown on the counter.

Candy to Avoid

Not every kind of Halloween candy is well suited for baking into cookie bars. For the most reliable results, stick primarily with chocolate-based treats.

Consider saving these candies for another use:

  • Gummies
  • Taffy
  • Hard candy
  • Lollipops
  • Sour candy
  • Chewing gum

These candies can become overly hard, sticky, or difficult to slice after baking. Save them for enjoying on their own, decorating a gingerbread house, or another creative post-Halloween project.

How to Prepare Leftover Candy for Baking

Start by sorting your candy and removing all the wrappers. Place larger chocolate bars on a cutting board and roughly chop them into bite-size pieces.

Aim for pieces that are large enough to notice in the finished bars but small enough to distribute evenly throughout the batter. Set aside a few colorful or recognizable pieces before mixing. You can press these into the top of the warm bars for a finished, candy-filled look.

The recipe uses 1 cup of chopped candy in the batter, plus additional pieces for topping.

The Perfect Pan for Halloween Candy Cookie Bars

A great cookie bar should bake evenly and be easy to portion. The Brownie Buddy® Baking Set brings the baking, cutting, and storing steps together in one convenient set.

It includes a pure aluminum 9-inch square pan, a fitted plastic cutter, and a BPA-free lid. The aluminum pan promotes even heat distribution and consistent browning, while the cutter portions the finished dessert into 16 uniform squares. Once the bars are sliced, the fitted lid makes it easy to cover the pan for storing or sharing.

The fitted plastic cutter is designed to press through the bars without scratching the aluminum pan. Beyond cookie bars, the set is useful for brownies, blondies, lemon bars, cornbread, snack cakes, and other square treats.

Why You’ll Love It

  • Includes a pure aluminum 9-inch square baking pan
  • Promotes even baking and consistent browning
  • Fitted cutter creates 16 uniform portions
  • Plastic cutter will not scratch the pan
  • BPA-free lid makes storing and sharing easy
  • Made in America
  • Backed by a Lifetime Warranty

Shop the Brownie Buddy® Baking Set

Brownies being sliced in the Brownie Buddy Baking Set.

Tips for Baking the Best Cookie Bars

Prepare the Entire Pan

Apply baking spray evenly across the bottom and up the sides of the pan. Use a pastry brush to distribute it into the corners for complete and consistent coverage.

Mix Until Just Combined

Once the flour mixture is added, stir only until the dry ingredients are incorporated. This helps the bars maintain a soft and chewy texture.

Distribute the Candy Evenly

Fold the chopped candy throughout the batter so every square has a good mix of cookie and candy pieces.

Spread the Batter Into the Corners

Cookie bar batter can be thick. Use a spatula to work it gently into the corners and create an even layer before baking.

Add More Candy After Baking

While the bars are still hot, gently press additional candy pieces into the surface. This gives each square a colorful finish and makes it easy to see some of the candy hidden inside.

Cool Before Cutting

Let the bars cool for 30 minutes before cutting so the center has time to set. Position the Brownie Buddy cutter over the pan and press down with both hands to create even portions.

Halloween Candy Cookie Bars Recipe

Turn extra trick-or-treat candy into soft and chewy cookie bars filled with chocolate, caramel, peanut butter, and colorful candy pieces. This easy leftover Halloween candy recipe is baked in one 9-inch square pan and makes 16 to 18 servings.

Ingredients

  • 1 large egg
  • 1 cup brown sugar
  • ½ cup granulated sugar
  • 10 tablespoons butter, melted
  • 2 teaspoons vanilla extract
  • 2½ cups all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • ¼ teaspoon baking soda
  • 1 cup chopped leftover Halloween candy or candy bars
  • Additional candy pieces for topping
  • Baking spray, for preparing the pan

Instructions

  1. Preheat the oven. Preheat the oven to 350°F.
  2. Prepare the pan. Coat the 9-inch square pan from the Brownie Buddy® Baking Set with baking spray. Use a pastry brush to distribute the spray evenly across the bottom, into the corners, and up the sides.
  3. Combine the wet ingredients. In a medium bowl, beat the egg. Add the brown sugar, granulated sugar, melted butter, and vanilla extract. Mix until combined.
  4. Combine the dry ingredients. In a separate small bowl, whisk together the all-purpose flour, baking powder, salt, and baking soda.
  5. Make the cookie bar batter. Add the dry ingredients to the wet ingredients. Stir until the flour mixture is just incorporated.
  6. Add the leftover Halloween candy. Fold 1 cup of chopped candy into the batter, distributing the pieces throughout the mixture.
  7. Fill the pan. Spread the batter evenly in the prepared pan, working it into the corners and smoothing the surface.
  8. Bake the cookie bars. Bake for 16 to 18 minutes, or until the bars are lightly browned.
  9. Add the candy topping. While the bars are still hot, gently press additional candy pieces into the top.
  10. Cool and slice. Let the bars cool for 30 minutes. Position the fitted plastic cutter from the Brownie Buddy® Baking Set over the pan and press down with both hands to create 16 uniform squares.
  11. Store or serve. Serve the bars once cooled, or use the set’s BPA-free lid to cover the pan for convenient storing and sharing.

View the full Halloween Candy Cookie Bars recipe

*Brownie Buddy Care Tip: Hand wash the aluminum pan with warm, soapy water. The cutter and lid are top-rack dishwasher safe. Automatic dishwasher use is not recommended for the aluminum pan because the detergent may cause cosmetic discoloration.

How to Store Halloween Candy Cookie Bars

Make sure the cookie bars are cool before covering or storing them. Once sliced, return the portions to the pan and use the BPA-free lid included with the Brownie Buddy® Baking Set to cover them.

You can also transfer the bars to an airtight container. Separate the layers with parchment or wax paper to prevent the candy topping from sticking to the bars above it.

Avoid covering the bars while they are still warm. Trapped heat can create condensation and soften the surface.

Lid being added to Halloween Candy Cookie Bars baked in the Brownie Buddy Baking Set and transported away.

More Ways to Use Leftover Halloween Candy

Still have extra treats in the candy bowl? Try one of these easy ideas for using leftover Halloween candy.

Mix It Into Brownies

Fold chopped chocolate bars, peanut butter cups, or candy-coated chocolates into brownie batter before baking.

Build an Ice Cream Sundae Bar

Chop several types of candy and place them in small bowls with ice cream, sauces, whipped cream, and sprinkles.

Add It to Popcorn

Combine popcorn, pretzels, chocolate candies, and chopped candy bars for a simple sweet-and-salty movie-night snack.

Decorate a Gingerbread House

Set aside colorful hard candies and candy-coated chocolates for holiday baking and decorating.

Make a Homemade Snack Mix

Combine candy-coated chocolates with pretzels, cereal, nuts, or dried fruit for an easy seasonal snack.

Save It for Future Baking

Sort wrapped candy by type and store it according to the package directions until you’re ready to bake another batch of cookies, brownies, blondies, or bars.

Halloween Candy Cookie Bars baked in the Brownie Buddy Baking Set with one piece missing.

Frequently Asked Questions

What can I do with lots of leftover Halloween candy?

Chop chocolate-based Halloween candy and bake it into cookie bars, brownies, blondies, or cookies. You can also use it as an ice cream topping, mix it with popcorn and pretzels, or save colorful pieces for holiday decorating.

What is the best dessert to make with leftover Halloween candy?

Cookie bars are one of the easiest leftover Halloween candy desserts because the batter is baked in a single pan. They can also accommodate several varieties of chopped candy in the same batch.

What Halloween candy is best for baking?

Chocolate bars, peanut butter cups, caramel-filled chocolates, wafer bars, toffee candies, and candy-coated chocolates work well in baked desserts. Snickers®, Reese’s®, Kit Kat® bars, and M&M’s® are all good options for these cookie bars.

Can I mix different candy bars together?

Yes. Combining several kinds of chocolate candy adds a variety of flavors and textures to the cookie bars. Try balancing soft chocolate or peanut butter candies with crisp wafer pieces or candy-coated chocolates.

Can I use hard candy or gummies in cookie bars?

Chocolate-based candy is the more reliable choice for this recipe. Hard candies, gummies, and taffy can develop undesirable textures when heated and may make the bars difficult to slice.

How much leftover candy do I need?

The recipe uses 1 cup of chopped candy in the batter, plus additional candy pieces pressed into the top after baking.

What size pan should I use?

Use a 9-inch square baking pan. The Brownie Buddy® Baking Set includes a an uncoated aluminum 9-inch square pan, along with a fitted cutting tool and BPA-free lid.

How do I know when the cookie bars are done?

Bake the bars at 350°F for 16 to 18 minutes, or until they are lightly browned.

Should I cut cookie bars while they are warm?

Let the bars cool for 30 minutes before using the Brownie Buddy cutter. Place the cutter over the baked bars and press down with both hands to create even portions.

What else can I make in the Brownie Buddy Baking Set?

The set can be used to bake, portion, store, and serve brownies, blondies, lemon bars, cornbread, fudge, cookie bars, and simple cakes.

Three different uses for the Brownie Buddy Baking set: brownies, cornbread, and cheesecake bars.

Give the Halloween Candy Bowl a Second Life

A pile of leftover Halloween candy is really an invitation to bake something new. These Halloween Candy Cookie Bars turn extra trick-or-treat candy into a soft, chewy dessert that is simple to prepare and easy to share.

The recipe is flexible enough to change with every Halloween haul, yet reliable enough to become a yearly tradition. With the Brownie Buddy® Baking Set, you can bake, portion, store, and serve the bars using one convenient set. Its pure aluminum pan supports even baking, while the fitted cutter creates 16 uniform squares for parties, lunchboxes, office treats, and everyday snacking.

Gather the chocolate bars no one has claimed, chop them into pieces, and turn the last of the season’s sweets into one more memorable treat.

Shop the Brownie Buddy® Baking Set