Spooky Peanut Butter Spider Cookies Halloween Treat
Peanut Butter Spider Cookies are about to become your new favorite spooky season treat, and for good reason! There’s something undeniably delightful about the classic combination of rich, salty peanut butter and sweet cookie dough, and when you add a touch of Halloween whimsy, you get pure magic. These aren’t just any cookies; they’re a nostalgic hug from childhood, a delightful way to celebrate the season, and a guaranteed hit with kids and adults alike. What makes these Peanut Butter Spider Cookies so special is their simple charm and customizable creepiness. You can go as subtly spooky or as fabulously frightening as you like with the spider decorations, making each batch uniquely yours. Get ready to impress your friends and family with these utterly irresistible and delightfully eerie cookies!
Why We Love Them
The perfect blend of sweet and salty, plus a fun, festive design!

Peanut Butter Spider Cookies
Get ready for a spooktacularly delicious treat that’s sure to be a hit with everyone, especially during Halloween! These Peanut Butter Spider Cookies are not only incredibly fun to make and look at, but they also boast a wonderfully classic peanut butter flavor that we all know and love. The soft, chewy cookie base perfectly complements the rich peanut butter center, and the adorable spider decorations take them from ordinary to extraordinary. This recipe is straightforward enough for bakers of all skill levels, and the kids will absolutely adore helping with the decorating. So, let’s dive in and create some creepy, crawly, and utterly irresistible cookies!
Ingredients:
- ½ cup (113g) unsalted butter (1 stick, room temperature)
- ½ cup (107g) brown sugar
- â…“ cup (66g) granulated sugar
- ¾ cup (201g) creamy peanut butter (not natural)
- 1 large egg
- 1 tsp vanilla extract
- 1 ½ cups (180g) all purpose flour
- 1 tsp baking soda
- ½ tsp baking powder
- ½ tsp salt
- Granulated sugar (for rolling the cookies)
- Mini Reese’s Peanut Butter Cups
- ½ cup (85g) semi-sweet chocolate chips (for melting)
- ½ tsp neutral oil (for melting)
- Candy eye balls.
Instructions:
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Creaming the Butter and Sugars:
The foundation of any great cookie lies in properly creaming the butter and sugars. In a large mixing bowl, combine the softened unsalted butter, brown sugar, and granulated sugar. Using an electric mixer (handheld or stand mixer with paddle attachment), beat these ingredients together on medium speed until the mixture is light and fluffy. This process, often called creaming, is crucial because it incorporates air into the butter and sugar, which helps the cookies rise and gives them a tender texture. Scrape down the sides of the bowl periodically to ensure everything is evenly combined. This should take about 3-5 minutes. The mixture will become pale in color and noticeably increase in volume.
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Adding Wet Ingredients and Peanut Butter:
Next, we’ll incorporate the star of our cookie: peanut butter! Add the creamy peanut butter (make sure it’s not the natural kind that separates, as it can affect the texture) to the creamed butter and sugar mixture. Beat until well combined and smooth. Then, add the large egg and the vanilla extract. Continue beating on medium speed until everything is thoroughly incorporated and the batter is uniform. Don’t overmix at this stage; just ensure everything is blended together.
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Combining Dry Ingredients and Forming the Dough:
In a separate medium bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt. Whisking the dry ingredients helps to evenly distribute the leavening agents and salt, preventing pockets of saltiness or uneven rising in your cookies. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix the dough once the flour is added, as this can lead to tough cookies. It’s okay if there are a few small streaks of flour remaining; they will disappear as you continue to work with the dough. The dough will be slightly sticky, which is perfectly normal.
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Chilling and Shaping the Cookies:
For the best results and to prevent excessive spreading during baking, it’s highly recommended to chill the cookie dough. Cover the bowl with plastic wrap and refrigerate for at least 30 minutes, or up to 2 days. Once chilled, preheat your oven to 350°F (175°C) and line baking sheets with parchment paper. Scoop rounded tablespoons of the chilled dough and roll them into balls. Then, gently roll each ball in granulated sugar. This sugar coating not only adds a lovely sparkle but also contributes to a slightly crisp exterior. Place the sugared dough balls about 2 inches apart on the prepared baking sheets. Now for the spider legs! Gently press the bottom of a Mini Reese’s Peanut Butter Cup into the top of each cookie dough ball. Use a toothpick or a thin knife to carefully score eight “legs” radiating out from the Reese’s cup, into the cookie dough. Don’t worry about making them perfect; a rustic look adds to the spider’s charm!
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Baking and Decorating Your Spiders:
Bake the cookies for 9-12 minutes, or until the edges are lightly golden and the centers are still slightly soft. The cookies will continue to set as they cool. Allow the cookies to cool on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely. While the cookies are cooling, melt the semi-sweet chocolate chips with the neutral oil. You can do this in a microwave-safe bowl in 30-second intervals, stirring between each, or by using a double boiler. Once melted and smooth, use a small spoon or a piping bag with a very fine tip to pipe two small dots of melted chocolate where the eyes will go on each Reese’s cup. Immediately press two candy eyeballs into the melted chocolate. For a slightly more “realistic” spider, you can also pipe a few extra thin lines of melted chocolate from the Reese’s cup onto the cookie to suggest extra legs or body details. Let the chocolate set completely before serving. These cookies are best enjoyed within a few days of baking, stored in an airtight container at room temperature. Enjoy your delightfully creepy and delicious Peanut Butter Spider Cookies!

Conclusion:
There you have it! These Peanut Butter Spider Cookies are an absolute delight, perfect for adding a spooky and delicious touch to any occasion, especially around Halloween. Their simplicity makes them incredibly accessible for bakers of all skill levels, and the combination of chewy peanut butter cookie with those adorable candy eyes is truly irresistible. They’re not just a treat; they’re a conversation starter and a guaranteed crowd-pleaser. I love serving these warm from the oven, maybe with a cold glass of milk, but they’re also fantastic for packed lunches or as a sweet end to a meal.
Don’t be afraid to get creative with variations! You could add a sprinkle of edible glitter to the dough for extra sparkle, or use different colored candy eyes to make them even more unique. Mini chocolate chips could be added to the dough for an extra chocolatey kick. I truly encourage you to give these Peanut Butter Spider Cookies a try. They’re a fun, festive, and unbelievably tasty way to bring a smile to everyone’s face. Happy baking!
Frequently Asked Questions:
How do I get the spider legs to look so defined?
For well-defined legs on your Peanut Butter Spider Cookies, use melted chocolate (milk or dark) in a piping bag with a very fine tip, or even a toothpick. You’ll want to let the cookies cool completely before piping, as this will prevent the chocolate from spreading too much and ensure clean lines. Experiment with different thicknesses for a more varied spider look!
Can I make these cookies ahead of time?
Absolutely! These cookies store exceptionally well. Once completely cooled, you can store them in an airtight container at room temperature for up to 3-4 days. They actually tend to get even chewier and more delicious the next day, so they’re perfect for making ahead for parties or events.
What if I don’t have candy eyes?
No worries if you’re out of candy eyes! You have a few fun alternatives. You can pipe small dots of white icing and then add a smaller dot of black icing on top for eyes. Alternatively, small chocolate chips (pointed end up) can mimic eyes, or even tiny pieces of black licorice can work in a pinch. Get creative!

Peanut Butter Spider Cookies
Spooky and delicious peanut butter cookies decorated to look like spiders, perfect for Halloween or any fun occasion.
Ingredients
-
½ cup (113g) unsalted butter, room temperature
-
½ cup (107g) brown sugar
-
â…“ cup (66g) granulated sugar
-
¾ cup (201g) creamy peanut butter (not natural)
-
1 large egg
-
1 tsp vanilla extract
-
1 ½ cups (180g) all purpose flour
-
1 tsp baking soda
-
½ tsp baking powder
-
½ tsp salt
-
Granulated sugar, for rolling
-
Mini Reese’s Peanut Butter Cups
-
½ cup (85g) semi-sweet chocolate chips
-
½ tsp neutral oil
-
Candy eye balls
Instructions
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Step 1
Preheat oven to 350°F (175°C). Line baking sheets with parchment paper. -
Step 2
In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy. -
Step 3
Beat in the peanut butter, then stir in the egg and vanilla extract. -
Step 4
In a separate bowl, whisk together the flour, baking soda, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. -
Step 5
Roll the cookie dough into 1-inch balls and then roll each ball in granulated sugar. Place them on the prepared baking sheets. -
Step 6
Bake for 9-11 minutes, or until the edges are lightly golden. -
Step 7
While the cookies are baking, prepare the spider legs and eyes. Cut Mini Reese’s Peanut Butter Cups in half. Melt the semi-sweet chocolate chips with the neutral oil in a microwave-safe bowl in 30-second intervals, stirring between each, until smooth. Transfer to a piping bag or a small ziplock bag with a corner snipped off. -
Step 8
Once the cookies are out of the oven, while they are still warm, press one half of a Mini Reese’s Peanut Butter Cup into the center of each cookie to form the spider body. Then, use the melted chocolate to pipe eight spider legs around the peanut butter cup. Immediately attach two candy eye balls to the peanut butter cup before the chocolate sets. -
Step 9
Allow cookies to cool completely on the baking sheets before moving them.
Important Information
Nutrition Facts (Per Serving)
It is important to consider this information as approximate and not to use it as definitive health advice.
Allergy Information
Please check ingredients for potential allergens and consult a health professional if in doubt.