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Splash of Taste – Vegetarian Recipes

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Home / Desserts / Easy Whoopie Pie Halloween Monsters Recipe

Easy Whoopie Pie Halloween Monsters Recipe

Published October 12, 2023 | Updated October 26, 2023 | By Mandy & Jane

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Whoopie pie halloween monster cookies.
Whoopie pie halloween monster cookies.

If you fancy adding a touch of whimsy to your Halloween spread, these Whoopie Pie Halloween Monsters are just the ticket. Not only are they irresistibly delicious, but they also bring a playful twist to the dessert table. With their easy preparation and crowd-pleasing taste, they’re set to become a Halloween favorite in no time. Ready to discover how to craft these tasty monsters?

A group of Whoopie pie Halloween monster cookies are arranged on a table.

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Why You Will Love Making Halloween Chocolate Whoopie Pies

  • Whoopie pies have been a beloved treat for many years, known for their soft, cake-like texture and creamy filling. By giving them a Halloween twist, you’re not just serving a dessert; you’re offering an experience. These monsters are a delightful blend of tradition and creativity, ensuring they’ll be a hit at any gathering.
  • Whether it’s the little ones eagerly awaiting trick-or-treating or adults looking for a nostalgic treat at annual Halloween parties, these Whoopie Pie Halloween Monsters cater to all. Their playful appearance captures the essence of Halloween, making them a fun addition to any party spread. Plus, who can resist those cute candy eyes?
  • You don’t need a long list of exotic ingredients to whip up these monsters. Most of the items, like all-purpose flour, unsweetened cocoa powder, and vanilla extract, are probably already in your pantry. And the best part? Combining these familiar ingredients results in a dessert that tastes amazing.
  • Baking is therapeutic for many, and when you add a dash of creativity, it becomes even more enjoyable. Designing your monsters, choosing where to place the eyes (or how many!), or deciding on the color of the filling allows you to put your personal touch on each treat. It’s a fun activity that can even be turned into a family affair, with everyone pitching in.
  • Let’s face it; part of the allure of these little guys is their sheer cuteness. They’re bound to get a chorus of “awws” before they’re gobbled up. And when your guests ask where you got the idea, you’ll have a fantastic recipe to share.

Ingredients You’ll Need

You’ll need all the ingredients in the photograph below.

A list of ingredients for Whoopie pie Halloween monster cookies.

How to Make Halloween Whoopie Pies with Step-by-Step Instructions

A complete printable recipe and the measurements in both US customary and metric are available in the recipe card below.

Crafting the Perfect Whoopie Pie Base

Start by preheating your oven to 355°F/180ºC.

In a large bowl, whisk together your dry ingredients: all-purpose flour, unsweetened cocoa powder, baking soda, and salt.

A bowl of dry ingredients with pumpkins and pumpkin seeds.
Whisk together your dry ingredients.
A bowl of brown sugar and an egg in it.
Add brown sugar, melted butter, egg, and vanilla.
A bowl of cookie wet ingredients with a whisk and pumpkins.
Mix until blended.

In a separate bowl, blend the brown sugar, melted butter, milk, egg, and vanilla extract using an electric mixer.

A white bowl with a whisk, ingredients, and pumpkins in the background.
Add the dry ingredients.
A bowl of chocolate batter surrounded by pumpkins.
Fold in, but be careful not to overmix.
Chocolate cookies on a baking sheet.
Scoop the pie batter onto a prepared baking sheet and bake.

Once smooth, fold in the dry ingredients, being careful not to over-mix the cake mix. This will ensure your pies are light and fluffy.

Once your batter is ready, scoop tablespoon-sized amounts onto a parchment-lined cookie sheet. A cookie scoop is great for this!

Baking to Perfection

Pop your whoopie pies into the preheated oven and bake for about 10 minutes. You’ll know they’re done when they spring back slightly to the touch.

Once baked, transfer them to a wire rack to cool completely. This step is crucial; if they’re even slightly warm, the filling might melt and create a mess.

Whipping Up the Buttercream Filling

While your pies are cooling, it’s time to prepare the filling. In another mixing bowl, mix all the filling ingredients, leaving out the food coloring for now.

Butter cream in a white bowl with pumpkins around it.
Mix the filling ingredients together except for the food colorings.
Two bowls of green and pink icing on a table.
Separate into two bowls and then add coloring.

Once your filling is creamy and smooth, divide it into two bowls. Add orange food coloring to one and green to the other, mixing until you achieve your desired consistency and color.

Assembling Your Monsters

Now for the fun part! Take one whoopie pie half and spread about 1½ tbsp of your colored filling on the flat side.

You can either use a piping bag or a spoon to do this. Arrange white chocolate chips as teeth, and then place another whoopie pie half on top, creating a sandwich.

Chocolate whoopie cookies on a baking sheet.
Add filling to the cooled baked Whoopie pies.
A hand holding a small cookie with frosting on it.
Add ‘teeth’ around the edges of the filling.
Chocolate monster cookies on a baking sheet.
Place another pie on top of the filling and add eyes.

For the eyes, dab a bit of filling on the back of each candy eye and stick them onto your monster. Repeat until all your monsters are assembled.

The Final Touch

Once all your monsters are assembled, let them sit for a bit to allow the filling to set. This is so they hold their shape when served.

And there you have it, delightful Whoopie Pie Halloween Monsters ready to be devoured!

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Recipe Notes and Expert Tips

  • Cocoa Powder: The type of cocoa powder you use can influence the flavor and color of your chocolate whoopie pies. Unsweetened cocoa powder is recommended for this recipe to give a rich, chocolatey taste without making the pies too sweet. Remember, the filling will add sweetness, so it’s all about balance!
  • Filling Consistency: When preparing the filling, aim for a creamy consistency that’s easy to spread but not too runny. If you find your filling is too thick, you can add a tablespoon of milk to loosen it up. Conversely, if it’s too runny, a bit more powdered sugar can help thicken it.
  • Get Creative: While candy eyes and white chocolate chips are suggested for the monster look, don’t be afraid to get creative! Vegetarian mini marshmallows, colored sprinkles, or even licorice strands can be used to give your monsters their own unique personalities. It’s a fun way to involve kids in the decorating process, too.
  • Can I use natural food coloring for the filling? Yes, natural food coloring works well. The color might be slightly less vibrant compared to artificial dyes, but it’s a great alternative for those looking for a more natural option.
  • Avoid Over-mixing: It’s tempting to keep mixing until you have a super smooth batter, but over-mixing can lead to dense whoopie pies. Mix just until the ingredients are combined to ensure your pies are light and fluffy.
  • Different flavors for the whoopie pie base: While this recipe uses a chocolate base, you can experiment with other flavors like pumpkin, red velvet, or even vanilla. Just ensure the consistency is similar to achieve the best results.
  • Storing Before Serving: If you’re not serving your Whoopie Pie Halloween Monsters immediately after assembling, it’s best to store them in a cool place. This helps the filling set properly and prevents it from oozing out. If it’s a particularly warm day, consider popping them in the fridge for a short while. If you’re making them the day before, we recommend assembling them with the filling and decorations on the day of your event for the best flavor and texture.
Three chocolate monster whoopie cookies are stacked on top of each other.

How to Store Leftover Monster Whoopie Pies

Are you making them ahead, or do you have leftovers? Here’s how to store them.

Keeping Them Fresh in the Fridge

If you find yourself with leftover Halloween Whoopie Pies, storing them in the fridge is best.

Place the monsters in an airtight container, ensuring they’re in a single layer to prevent them from sticking together. They can stay fresh for up to 3-4 days when refrigerated.

Before serving, let them sit at room temperature for about 15 minutes to bring out their best flavor.

Freezing for Longer Shelf Life

For a longer storage solution, try freezing your monsters. First, place them on a baking sheet and freeze until solid. Once frozen, transfer them to a resealable plastic bag or airtight container, separating layers with parchment paper.

This method prevents them from sticking together and ensures they retain their shape. When you’re ready to enjoy them, thaw them in the refrigerator overnight or at room temperature for a few hours.

A group of Whoopie pie Halloween monster cookies are arranged on a table.

Avoiding Moisture Build-Up

Moisture is the enemy of freshness, especially for desserts like whoopie pies. If storing in the fridge, make sure your container is airtight.

When freezing, remove as much air as possible from the resealable bag. This helps maintain the texture and flavor of your Whoopie Pie Halloween Monsters, ensuring they taste amazing even days after making them.

What to Serve with Whoopie Pie Halloween Monsters

Don’t just stop with cookie monsters, here are some great ideas to pair them with.

A Spooky Beverage Pairing

While these monsters are delightful on their own, pairing them with a themed beverage can elevate the entire dessert experience.

Consider serving them with a glass of “witch’s brew” – our Cranberry, Orange, and Pomegranate Spritzer is perfect for all ages. For a more adult treat,  our classic Halloween Cocktail is a spooky, spicy, and fruity delight! 

Complementary Desserts

If you’re hosting a Halloween party and want a dessert spread that’s both diverse and thematic, consider adding other spooky treats alongside your Halloween Whoopie Pie Monsters.

Pumpkin cheesecake, a pumpkin roll, Witch Finger Cookies, and Halloween Cookies are all fantastic options. They not only add variety but also create a visually appealing dessert table that’s sure to impress.

A Savory Counterpart

For those who like to balance their sweet treats with something savory, consider serving some Halloween-themed savory snacks.

Cheese balls shaped like pumpkins, Halloween Frankenstein Snacks, or even a simple bowl of sweet and salty popcorn can provide a delightful contrast to the sweetness of the whoopie pies.

A group of Whoopie pie Halloween monster cookies on a table with pumpkins.

More Pie Recipes For You To Try

  • Mississippi Mud Pie
  • Pecan Pie Cheesecake
  • Creamy Cinnamon Pie
  • Reese’s Peanut Butter Pie
  • Easy Chocolate Pie Recipe
A group of Whoopie pie Halloween monster cookies are sitting on a table.
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5 from 54 votes

Easy Whoopie Pie Halloween Monsters Recipe

With their easy preparation and crowd-pleasing taste, these Whoopie Pie Halloween Monsters are set to become a Halloween favorite in no time.
Prep Time10 minutes mins
Cook Time10 minutes mins
Total Time20 minutes mins
Servings11 servings
Calories341
Course: Dessert
Cuisine: American
Author: Mandy Applegate | Splash of Taste
Prevent your screen from going dark

Ingredients

For the Whoopie Pies

  • 2 cups All-purpose flour
  • ½ cup + 2 tbsp unsweetened cocoa powder
  • 1 tsp. Baking soda
  • ½ tsp. Salt
  • 1 cup Brown brown sugar
  • ½ cup Butter melted
  • 1 cup Milk
  • 1 Egg
  • 2 tsp. Vanilla extract

For the Filling

  • ½ cup Unsalted butter softened
  • 4 cups Confectioners sugar
  • 1 tsp Vanilla extract
  • 3 tbsp Milk you may need an additional tablespoon
  • Orange and green food coloring

To Assemble

  • Candy eyes
  • White chocolate chips
US Customary – Metric

Instructions

  • Preheat the oven to 355°F/180ºC.
  • In a mixing bowl whisk together flour, cocoa powder, baking soda and salt. Set aside.
    2 cups All-purpose flour, ½ cup + 2 tbsp unsweetened cocoa powder, 1 tsp. Baking soda, ½ tsp. Salt
  • In another bowl, mix the brown sugar, butter, milk, egg, and vanilla extract with an electric hand mixer until blended. Add the dry ingredients and fold in until just combined – don’t over-mix. Line a baking sheet with paper and scoop the batter the size of a tablespoon. Bake for 10 minutes; remove them from the oven and let them cool on a wire rack.
    1 cup Brown brown sugar, ½ cup Butter, 1 cup Milk, 1 Egg, 2 tsp. Vanilla extract
  • Mix all filling ingredients except the colorant; divide in two bowls and add each color.
    ½ cup Unsalted butter, 4 cups Confectioners sugar, 1 tsp Vanilla extract, 3 tbsp Milk, Orange and green food coloring
  • To assemble the monsters, place about 1½ tbsp. of filling into each cake, arrange the white chocolate chips as teeth and top with another cake. Place a bit of filling on the back of each eye to make it stick and place it on top of the monsters. Let them cool before serving and enjoy!
    Candy eyes, White chocolate chips

Notes

  1. Cocoa Powder: The type of cocoa powder you use can influence the flavor and color of your chocolate whoopie pies. Unsweetened cocoa powder is recommended for this recipe to give a rich chocolatey taste without making the pies too sweet. Remember, the filling will add sweetness, so it’s all about balance!
  2. Filling Consistency: When preparing the filling, aim for a creamy consistency that’s easy to spread but not too runny. If you find your filling is too thick, you can add a tablespoon of milk to loosen it up. Conversely, if it’s too runny, a bit more powdered sugar can help thicken it.
  3. Get Creative: While candy eyes and white chocolate chips are suggested for the monster look, don’t be afraid to get creative! Vegetarian mini marshmallows, colored sprinkles, or even licorice strands can be used to give your monsters their own unique personalities. It’s a fun way to involve kids in the decorating process too.
  4. Can I use natural food coloring for the filling? Yes, natural food coloring works well. The color might be slightly less vibrant compared to artificial dyes, but it’s a great alternative for those looking for a more natural option.
  5. Avoid Over-mixing: It’s tempting to keep mixing until you have a super smooth batter, but over-mixing can lead to dense whoopie pies. Mix just until the ingredients are combined to ensure your pies are light and fluffy.
  6. Different flavors for the whoopie pie base: While this recipe uses a chocolate base, you can experiment with other flavors like pumpkin, red velvet, or even vanilla. Just ensure the consistency is similar to achieve the best results.
  7. Storing Before Serving: If you’re not serving your Whoopie Pie Halloween Monsters immediately after assembling, it’s best to store them in a cool place. This helps the filling set properly and prevents it from oozing out. If it’s a particularly warm day, consider popping them in the fridge for a short while. If you’re making them the day before, we recommend assembling them with the filling and decorations on the day of your event for the best flavor and texture.
  8. Refrigerate: Place the monsters in an airtight container, ensuring they’re in a single layer to prevent them from sticking together. They can stay fresh for up to 3-4 days when refrigerated. Before serving, let them sit at room temperature for about 15 minutes to bring out their best flavor.
  9. Freezing: Place them on a baking sheet and freeze until solid. Once frozen, transfer them to a resealable plastic bag or airtight container, separating layers with parchment paper. This method prevents them from sticking together and ensures they retain their shape. When you’re ready to enjoy them, thaw in the refrigerator overnight or at room temperature for a few hours.

Nutrition

Calories: 341kcal | Carbohydrates: 86g | Protein: 5g | Fat: 19g | Saturated Fat: 12g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 62mg | Sodium: 300mg | Potassium: 162mg | Fiber: 2g | Sugar: 21g | Vitamin A: 580IU | Calcium: 65mg | Iron: 2mg

Disclaimer

Please note that nutrient values are estimates only. Variations can occur due to product availability and manner of food preparation. Nutrition may vary based on methods of origin, preparation, freshness of ingredients, and other factors.

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A vegetarian for over 35 years, Mandy has taught herself to be creative in the kitchen. Traveling extensively, Mandy loves learning and adapting vegetarian recipes from across the world. Read more...

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Comments

  1. Jess says

    October 10, 2023 at 10:47 am

    5 stars
    My kids loved these! They are so cute! I am going to be making them again for our Halloween party this weekend!

    Reply
    • Mandy says

      October 25, 2023 at 3:35 am

      It’s wonderful that you’re making these cute treats again for your Halloween party! They’ll surely be a hit with your guests.

  2. Joan says

    October 14, 2023 at 4:45 pm

    5 stars
    I showed these to the kids and they BEGGED to make them so we did just that the other night as a test run. Going to be making more next week for them to take to school. Such a fun way to celebrate Halloween!

    Reply
    • Mandy says

      October 25, 2023 at 3:40 am

      That’s fantastic to hear that the kids loved them! It’s a fun and creative way to celebrate Halloween.

  3. Darla says

    October 19, 2023 at 7:15 am

    Easy to make, and so delicious. They not only satisfied the sweet tooth but also brought a playful vibe to the dessert table. Definitely a must-try for a spooktacular Halloween!

    Reply
    • Mandy says

      October 25, 2023 at 3:46 am

      I’m delighted to hear that you found them easy to make and delicious!

  4. Beth says

    October 19, 2023 at 10:12 pm

    5 stars
    I made this with my kids, and they enjoyed it! The cakes turned out soft and moist, and the filling was creamy and perfectly sweet. Will definitely be making these cute little monsters again this Halloween!

    Reply
    • Mandy says

      October 26, 2023 at 2:48 am

      That sounds like such a fun and delicious Halloween activity! I’m thrilled to hear that you and your kids enjoyed making these cute little monster cakes.

  5. Mary says

    October 20, 2023 at 5:24 am

    5 stars
    I tried making your recipe today, and it turned out amazing! Whenever I’m making this, I can’t achieve the perfect balance of sweetness.

    But, when I followed your advice to use Unsweetened cocoa powder for this recipe. It definitely gave it a rich, chocolatey taste without it being too sweet. Thank you! 🙂

    Reply
    • Mandy says

      October 24, 2023 at 8:44 am

      I’m thrilled to hear that your recipe turned out amazing with the unsweetened cocoa powder! Finding that perfect balance of sweetness can be a challenge, but it sounds like you nailed it.

  6. Jacob says

    October 20, 2023 at 8:07 am

    5 stars
    What a creative recipe! Made these whoopie pies for the family and they absolutely loved them. Might have to do it again for Holloween night! Thanks for the great tips.

    Reply
    • Mandy says

      October 25, 2023 at 2:52 am

      You’re welcome! I’m thrilled to hear your family loved the whoopie pies! They’d be a perfect treat for Halloween night.

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