Butterfinger Frankenstein Cookie Recipe for Halloween Treats

Dip BUTTERFINGER® Fun Size candy bars into melted almond bark to transform ordinary peanut butter cookies into adorable Frankenstein cookies. A simple Halloween project to make with kids for parties, classroom treats, or a festive dessert table.

Peanut Butter Cookies with Butterfinger Frankensteins on top. Butterfinger candy bar dipped in green white chocolate then decorated with eyeballs on top.

Halloween may still be a few weeks away, but there’s no harm in getting a head start on treats. Having ingredients on hand makes it much easier to actually bake, so keep a stash of staples and a few BUTTERFINGER® Fun Size candy bars for quick, festive baking.

Ingredients for Peanut Butter Frankenstein Cookies. Bag of Butterfinger candy bars, almond bark, green food coloring, peanut butter cookie dough, and candy eyeballs.

What you need for these Easy Frankenstein Cookies:

Peanut butter cookies (recipe below), BUTTERFINGER® Fun Size candy bars, white almond bark, green food coloring, candy eyeballs.

Materials

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Almond Bark
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BUTTERFINGER® Fun Size
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Candy Eyeballs (Mini)
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Cookie Recipe (below)
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Food Coloring

These candy-topped Frankenstein cookies are easy to prep ahead: make the toppers before a party or individually package them for classroom treats. They’re a fun mix of peanut butter cookie and candy bar that kids and adults love.

A white cutting board with mini Butterfinger candy bars, almond bark, a bowl of candy eyeballs, and bottle of green food coloring on top.

How to make these Butterfinger Frankenstein Cookies

Tip: A printable recipe card is included below for convenience.

Step 1: Melt almond bark and color

Melt 3 squares of white almond bark in the microwave at 50% power in 30-second intervals, stirring between each increment until smooth. Stir in 1–2 drops of green food coloring until you reach the shade you want. Let the almond bark cool for 10–15 seconds so it isn’t piping hot when you spoon it over the candy bars.

Bowl of melted green almond bark wth Butterfinger candy bars and a bowl of candy eyeballs off to the side.

Step 2: Unwrap candy bars

Unwrap the BUTTERFINGER® Fun Size bars and place them on wax paper or parchment.

Step 3: Cover candy bars with almond bark

Place a candy bar on the tines of a fork held over the bowl. Use a spoon to drizzle the green almond bark over the bar, covering it completely. Aim for a thick coating—avoid tapping off too much or the candy’s chocolate may show through. Set each dipped bar on wax paper and, before the coating hardens, press two candy eyeballs into the top.

Butterfinger candy bars dipped in melted green almond bark then decorated with candy eyeballs on top to look like Frankenstein.

Step 4: Add eyeballs and pipe a mouth

Press two candy eyeballs into each coated bar while the almond bark is still soft. If the coating hardens, chill the bars briefly. Melt an extra square of white almond bark and transfer it to a piping bag or a plastic bag with a small cut in the corner. Pipe stitches and mouths on each Frankenstein. For a Bride of Frankenstein look, pipe squiggly hair lines on one side of the bar.

Butterfinger candy bars that have been dipped in melted green almond bark then decorated with candy eyeballs to look like Frankenstein and Frankenstein's bride.

Step 5: Make cookie dough and bake

Prepare the peanut butter cookie dough (recipe follows). Shape dough into oval or slightly flattened balls and bake as directed. Right after removing the cookies from the oven, gently press a decorated Frankenstein BUTTERFINGER® into the center of each warm cookie so it adheres as the cookie cools.

Open bag of Butterfinger fun size candy bars with balls of peanut butter cookie dough on cookie sheet ready to be baked.
Peanut butter cookies on baking tray topped with decorated Frankenstein Butterfinger candy bars.

Step 6: Allow to harden and serve

Let the almond bark re-harden before serving. If you want the coating to set quickly, chill the cookies for 15–30 minutes. These are great on a Halloween dessert table or individually wrapped for favors or classroom treats.

Open bag of Butterfinger fun size candy bars with peanut butter cookies on wire rack decorated to look like Frankenstein.

Peanut butter paired with more peanut butter is a win in my book. These cookies are cute, candy-packed, and disappear quickly—so bake extras if you plan to share.

Peanut butter cookies topped with Butterfinger fun size candy bars that have been decorated to look like Frankenstein.

Frequently asked questions

How do I prevent the candy bar chocolate from melting?

Don’t dip the candy bar directly into hot almond bark. Instead, hold the bar on a fork and spoon the cooled almond bark over it. This minimizes heat transfer and keeps the candy intact.

Where can I buy candy eyeballs?

Candy eyeballs are typically available at craft and baking supply stores and many grocery stores in the baking aisle. Mini eyeballs are the best size for these toppers.

Close of shot of Butterfinger fun size candy bars with one bite of unwrapped candy bar.
Peanut butter cookies topped with Butterfinger fun size candy bars that have been decorated to look like Frankenstein.

Easy Butterfinger Frankenstein Cookies

4.75 from 4 votes
Prep Time: 20 mins
Cook Time: 10 mins
Total Time: 30 mins
Dip BUTTERFINGER® Fun Size candy bars into melted almond bark to turn peanut butter cookies into adorable Frankenstein cookies.

Ingredients (makes 12 cookies)

Peanut Butter Cookies
  • ½ cup unsalted butter (1 stick)
  • ¼ cup granulated sugar
  • ½ cup packed light brown sugar
  • ½ cup creamy peanut butter
  • 1 large egg
  • 1 ½ teaspoons vanilla extract
  • ½ teaspoon baking soda
  • ¼ teaspoon salt
  • 1 ½ cups all-purpose flour
For topping
  • 4 squares white almond bark
  • Green food coloring
  • Candy eyeballs
  • 12–14 NESTLÉ® BUTTERFINGER® Fun Size candy bars

Instructions

Prep Frankenstein toppers
  1. Melt 3 squares of almond bark in the microwave at 50% power in 30-second intervals, stirring between each time until smooth.
  2. Stir in 1–2 drops of green food coloring to reach your desired shade. Let the almond bark cool briefly.
  3. Place a butterfinger on a fork and spoon the green almond bark over it, creating a thick coating. Place each on parchment and press two candy eyeballs into the top before the coating sets.
  4. Optional: melt 1 square of almond bark and pipe stitched mouths or scars. Refrigerate the toppers while you bake the cookies.
Make the cookies
  1. Preheat oven to 350°F and line a baking sheet with parchment paper.
  2. In a small microwave-safe bowl, melt ½ cup unsalted butter and pour into a mixing bowl. Add ¼ cup granulated sugar, ½ cup packed light brown sugar, and ½ cup creamy peanut butter; mix briefly.
  3. Add 1 large egg and 1 ½ teaspoons vanilla extract and mix until combined.
  4. Mix in ½ teaspoon baking soda and ¼ teaspoon salt on low speed.
  5. Add 1 ½ cups all-purpose flour, half cup at a time, and mix until just combined. Do not overmix.
  6. Scoop dough into 3-tablespoon-sized balls, lightly flatten, and place on the prepared sheet.
  7. Bake at 350°F for about 8 minutes. They may look slightly underdone—allow them to finish on the hot baking sheet.
  8. Immediately after removing from the oven, press a decorated Butterfinger into the center of each cookie. Cool on the baking sheet for 5–10 minutes. To fully harden the topping, chill for 15–30 minutes.

Nutrition

Calories: 254 kcal,
Carbohydrates: 28 g,
Protein: 4 g,
Fat: 13 g.

Did you make this?

I’d love to hear how yours turned out—leave a review and share a photo of your creation if you can!

This post was created in partnership with BUTTERFINGER®. All content and opinions are my own. Thank you to sponsors who help keep this blog and free printables running.

Close up shot of peanut butter cookies topped with Butterfinger fun size candy bars that have been decorated to look like Frankenstein.

For more inspiration and ideas, look for seasonal recipes and baking supplies at your favorite retailers and baking sections.