Halloween Cookie Sandwiches

I’m a huge fan of Funfetti, and I love that they come out with seasonal varieties of their mixes. So of course, I had to make Halloween Funfetti Cookie Sandwiches. Inspired by Casper, I added a cute ghost marshmallow to each cookie at the end, and I couldn’t be happier with the result. Two cookies sandwiched together with rich chocolate frosting? Heck yeah. This is definitely the perfect way to wrap up my Halloween cookie sandwich flavors this year.

Halloween Funfetti Cookie Sandwiches

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• Author: Taryn Camp

Ingredients

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• 1 box Halloween Funfetti cake mix
• 2 eggs
• 1/2 cup vegetable oil
• 1 stick of salted butter
• 2 cups powdered sugar
• 1 tsp vanilla extract
• 2–3 tbsp heavy cream
• 1/4 cup dark cocoa powder
• 11–12 ghost-shaped marshmallows

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Instructions

1. Preheat your oven to 350°F and line two baking sheets with parchment paper.
2. In a medium bowl, combine the cake mix, eggs, and vegetable oil. Use a small 1-inch cookie scoop (about 1 tablespoon) to portion the dough onto the baking sheets, spacing them about 2 inches apart. You should get around 22 cookies, perfect for making 11 cookie sandwiches.
3. Bake for 7-8 minutes, or until the cookies just start to “set”. Remove them from the oven and gently place a ghost marshmallow on top of half of the cookies. Bake for another 2-3 minutes, just until the cookies are lightly golden and the marshmallows are soft. Be careful not to overbake, or the ghosts will melt!
4. Let the cookies cool on the baking sheets for 10-15 minutes, then transfer them to wire racks to cool completely.
5. While the cookies cool, prepare the frosting. In a mixing bowl, beat the butter until smooth using a hand or stand mixer. Gradually add half the powdered sugar and mix. Add the remaining powdered sugar, vanilla extract, heavy cream, and cocoa powder, and mix until smooth and fluffy. Start with 2 tablespoons of heavy cream and add more if needed for a spreadable consistency. Basically, you want it to be smooth enough to frost, not too thick. If the starting temp of your butter was a bit cool, you’ll need more heavy cream.
6. To assemble the sandwiches, place one cookie upside down and pipe or spread the frosting in the center. Top with a marshmallow-topped cookie and gently press together. Repeat with the remaining cookies.

So, funny story—I’m not sure if I’ve completely forgotten the Casper movie or if I just never saw it as a kid. I remember the cartoon, which I think was a spin-off, so maybe that’s what I’m remembering. Either way, I decided to watch the live-action movie while making these cookies, and I had no idea Devon Sawa played Casper as a human! A little weird, but hey, a lot of 90s movies were like that, right?

These cookies have the classic sweet Funfetti flavor, which I balanced with a rich chocolate frosting. The ghost marshmallows add a fun and gooey texture, but make sure not to bake them too long, or they’ll melt and spread much more than you’d like! Just add them in the last couple of minutes for the perfect finish.

The best thing about cookie sandwiches is that they’re so satisfying. One is usually enough to hit the spot, and you can adjust the amount of filling to suit your taste. I’m a big frosting fan, but if you’re not, you can go light on the filling and still get the perfect combo of flavors.

It’s almost October, so it’s time to break out the Halloween movies! I highly recommend making one of these cookie sandwiches from the past month. It’s the perfect treat for a spooky movie night.