This Chewy Halloween Peanut Butter Spider Cookie Recipe is perfect for adding a fun and spooky treat to your Halloween party. These cookies are chewy, rich in peanut butter flavor, and topped with chocolate spiders that will catch everyone's eye.

To get started, line your cookie sheet with a baking sheet and set it aside. In a medium-sized bowl, whisk together the dry ingredients and set them aside. In a large bowl, use an electric mixer on medium-high speed to cream the sugars, peanut butter, and butter until light and fluffy—about 1.5 minutes.

Next, whisk in the egg, egg yolk, and vanilla extract until well combined, scraping the sides of the bowl as needed. Gradually add the flour mixture to the wet ingredients, mixing until just combined. Be careful not to over-mix; a few streaks of flour are okay. Once the peanut butter cookie dough is ready, refrigerate it for 15 minutes, and preheat your oven to 350°F (175°C).

Scoop cookie dough using a cookie scoop into 3-tablespoon-sized cookie dough balls and place them on the lined baking tray, ensuring they’re spaced 2.5 inches apart. Bake one sheet at a time in the center of the oven for 10-15 minutes, or until the edges are golden brown and crisp.

Immediately after the cookies are out of the oven, bang the pan a few times on the counter or gently press each cookie with the bottom of a glass to help them flatten out a bit.

Cool cookies for 5 minutes on the baking sheet, or until they’re easy to handle without breaking, before transferring them to a wire rack to cool completely.

Once your cookies are completely cooled, start with the body of the spider. Melt the white chocolate and semi-sweet chocolate -you can use this guide on how to melt chocolate properly– and place them each in a small ziplock bag or piping bag and cut a small hole in the corner of the bag.

Add melted chocolate on the bottom of a Reese’s peanut butter cup to glue it to the center of each cookie for the spider body, then glue with a small amount of chocolate the candy eyeballs for the spider eyes.