Name: Monster Mash Brownies: Indulge in Spooktacular Flavor!
Prep time: 30 min
Cook time: 30 min
Total time: 180 min
Ingredients: 0.5 cups all-purpose flour (to help give structure to your fudgy brownies.); 0.75 cups unsweetened cocoa powder (for that deep, chocolatey flavor.); 1.5 cups granulated sugar (for the right amount of sweetness.); 1.25 cups unsalted butter (melted, to keep the brownies moist.); 1.5 cups dark chocolate (melted, for luscious chocolate depth.); 6 large eggs (for a perfectly fudgy texture.); 1 cups white chocolate chips (for creaminess and surprises.); 1 cups dark chocolate chips (to enrich the overall chocolate experience.); 1.25 batches American buttercream frosting (for vibrant decorations.); 0.25 cups cocoa powder (to deepen the frosting's flavor.); 2 tbsp milk (to achieve the right consistency.); 10 drops black food gel (for spooky decorations.); 3 drops teal food gel (for a pop of color.); 5 drops yellow food gel (to add playful cheeriness.); 10 drops red food gel (for a vampire-inspired touch.); 10 drops purple food gel (for a mystical vibe.); 5 drops pink food gel (for brighter accents.); 20 cm liquorice (cut into shapes for fun textures.)

Spread the love

As I stood in my kitchen surrounded by an array of vibrant food gels, I couldn’t help but feel like a mad scientist preparing for a sweet experiment. Enter the Monster Mash Brownies, a whimsical dessert that’s sure to impress not only the kids but also any adult with a taste for nostalgia and delight. These brownies boast an irresistible combination of rich chocolate, festive colors, and playful designs that make them perfect for Halloween parties or just a creative weekend bake. Best of all, they’re a crowd-pleaser with a gooey, fudgy texture and a hint of excitement in every bite. Ready to unleash your inner artist and turn your ordinary brownie game into an extraordinary one? Let’s dive into this deliciously fun adventure together!

Why are Monster Mash Brownies a must-try?

Irresistible flavor: These brownies combine rich dark chocolate and creamy white chocolate chips for a decadent treat that delights the senses.

Spooktacular designs: Transform your bake into playful monster shapes that are perfect for Halloween or any festive gathering!

Kid-friendly fun: Get the little ones involved in decorating these fun treats—great family bonding time while creating memories in the kitchen.

Versatility at its finest: Whether you're going for spooky, cute, or a mix, the design potential is endless—perfect for any occasion!

Time to indulge: With a total time of just over two hours, you’ll have a show-stopping dessert ready to impress your guests. If you want more fun ideas, don’t miss out on my Halloween treats collection for more festive inspiration!

Monster Mash Brownie Ingredients

Get ready to create a spooktacular treat that is sure to delight everyone!

For the Brownies

All-purpose flour – ½ cup (75 g) to help give structure to your fudgy brownies.
Unsweetened cocoa powder – ¾ cup (75 g) for that deep, chocolatey flavor we've all come to love.
Granulated sugar – 1 ½ cups (300 g) for just the right amount of sweetness to balance the rich chocolate.
Unsalted butter – 1 ¼ cups (300 g), melted, to keep the brownies moist and totally irresistible.
Dark chocolate – 1 ½ cups (300 g), melted, adding a luscious chocolate depth to the brownies.
Large eggs – 6 eggs for a perfectly fudgy texture that melts in your mouth.
White chocolate chips – 1 cup (200 g) adds a touch of creaminess and surprises in every bite.
Dark chocolate chips – 1 cup (200 g) enriches the overall chocolate experience.

For the Frosting

American buttercream frosting – 1 ¼ batches to create vibrant, colorful decorations that truly pop.
Cocoa powder – ¼ cup (20 g) to deepen the frosting's flavor for a delightful finishing touch.
Milk – 2 tablespoon to achieve the right consistency for easy piping of your spooky designs.

For the Food Colorings

Black food gel – 10 drops to create a spooky black that makes for eye-catching decorations.
Teal food gel – 3 drops for a fun pop of color that brings your monsters to life.
Yellow food gel – 5 drops total (with some in other shades) to add playful cheeriness.
Red food gel – 10 drops helps create that perfect vampire-inspired touch.
Purple food gel – 10 drops to give your monster treats a mystical vibe.
Pink food gel – 5 drops for brighter accents on your spooky creations.

For the Decorations

Liquorice – 20 cm roll cut into shapes to add some fun textures and hairstyles to your monster brownies.

Enjoy conjuring up your deliciously fun Monster Mash Brownies that are guaranteed to be a hit at any gathering!

Step‑by‑Step Instructions for Monster Mash Brownies

Step 1: Prepare the Frosting
Start by dividing your American buttercream frosting into seven portions. Create green frosting by mixing two portions with green and yellow food gels until well blended. For black frosting, mix one portion with cocoa powder, milk, and black food gel. Paint the remaining portions with colors: light yellow, one portion yellow, half portion red, one portion purple, and keep the last portion white for decoration.

Step 2: Preheat the Oven
Set your fan-forced oven to preheat at 175°C (340°F). This temperature is perfect for baking your Monster Mash Brownies evenly, ensuring a delightful fudgy consistency. While the oven heats, you can focus on preparing your baking tin, so it’s ready for the brownie batter.

Step 3: Prepare the Baking Tin
Take a 32 cm x 24 cm baking tin and spray it generously with non-stick cooking spray. Line the bottom with parchment paper for easier brownie removal later. Ensuring this step is done right will help your Monster Mash Brownies come out perfectly without sticking, so don’t skip it!

Step 4: Melt the Chocolate and Butter
In a microwave-safe bowl, combine your melted butter and dark chocolate. Microwave in 20-second increments, stirring in between each session until the mixture is smooth and glossy. This step is essential for creating the rich base of your brownies, so be patient and watch for lumps to disappear.

Step 5: Incorporate Sugar and Eggs
Once your chocolate mixture is smooth, add in the granulated sugar. Whisk together until thoroughly combined. Then, crack in the six large eggs, whisking them in one at a time until the batter is evenly blended and slightly glossy, forming the perfect chocolatey mixture for your Monster Mash Brownies.

Step 6: Mix Dry Ingredients and Chocolate Chips
Using a spatula, gently fold in the cocoa powder and all-purpose flour to your chocolate mixture. Stir just until no flour pockets remain. Next, add both types of chocolate chips—white and dark—ensuring they’re evenly mixed throughout. This will create delightful pockets of melted chocolate in your brownies.

Step 7: Bake the Brownies
Pour the brownie batter into your prepared baking tin, smoothing out the top with a spatula. Place it in the preheated oven and bake for about 30 minutes. You’ll know your Monster Mash Brownies are done when a toothpick inserted in the center comes out with moist crumbs, not wet batter.

Step 8: Cool and Chill
After baking, remove the brownies from the oven and allow them to cool at room temperature for one hour. Once cooled, place the tin in the fridge for an additional hour to firm up the brownies. This chilling step ensures your brownies hold their shape when you cut them into squares.

Step 9: Cut Out Brownie Squares
Once chilled, use a 2 ½ inch square cookie cutter to cut out 12 delightful brownie squares. Gently press the cutter down into the brownie, and twist slightly to release. The chilled and fudgy texture makes cutting easy while allowing for perfect squares filled with rich chocolate flavor.

Step 10: Create Frankenstein Brownies
Take six brownie squares and pipe a border of green frosting around each one using a small spatula to smooth it out. Set these aside while you grab the remaining three brownies for your next spooky designs. The visual of the green frosting will kick off the fun decorations for your Monster Mash Brownies.

Step 11: Decorate the Frankenstein Brownies
Fit a piping bag with a Wilton #3 tip and use it to pipe out facial features—mouth, eyes, and monobrow—on your green frosted brownies. Add stitches on the mouths and fill in the eyes with yellow frosting, using black frosting for pupils. Don’t forget to place small pieces of black liquorice for extra monster hair!

Step 12: Decorate Mummy Brownies
Using the green frosted brownies, fit a piping bag with a Wilton 2B tip and fill it with light yellow frosting. Pipe lines across the top of the brownies, creating a mummy effect, and use black frosting to pipe eyes, highlighting them by adding yellow frosting around the pupils for a spooky look.

Step 13: Make Spider Monster Brownies
For the last brownie trio, pipe a square of purple frosting around each one, smoothing it out with a spatula. With a Wilton #3 tip, create fun facial features—pipe a black smile, red fangs, and green eyes for a spooky yet adorable creature. These final touches will make your Monster Mash Brownies extra festive!

Step 14: Finish with Dracula Brownies
For Dracula brownies, fill two piping bags, one with black frosting and the other with white frosting, using a Wilton #8 tip for both. Pipe a widow's peak on top of each of the last three brownies and fill it with white frosting. Follow the steps for the mummy brownies to finish the eyes and add the mouth for that final vampire touch.

Expert Tips for Monster Mash Brownies

Measure Accurately: Always use a kitchen scale for precise measurements, especially with dry ingredients like flour and cocoa powder, to ensure the perfect brownie texture.
Don’t Overmix: When combining the dry ingredients with the wet, fold gently. Overmixing can lead to tough brownies, so mix just until incorporated for those magical Monster Mash Brownies!
Chill for Shape: After baking, allow the brownies to cool at room temperature and then chill in the fridge. This helps them hold their shape during cutting and decorating.
Piping Tips Matter: Use the correct piping tips for detailing. Wilton tips #2B and #3 create larger decorative swirls, while #8 is perfect for fine lines and features.
Experiment with Colors: Don't hesitate to use different food gel colors! Combining shades can create vibrant, unique monsters and enhance the fun of decorating your Monster Mash Brownies.

Storage Tips for Monster Mash Brownies

Room Temperature: Keep your Monster Mash Brownies in an airtight container at room temperature for up to 3 days to maintain their freshness and fudgy texture.

Fridge: If you want to extend their shelf life, store the brownies in the fridge for up to a week. Be sure to wrap each piece individually to prevent drying out.

Freezer: For longer storage, freeze your Monster Mash Brownies wrapped tightly in plastic wrap and then placed in a resealable bag for up to 3 months. Thaw in the fridge for several hours before enjoying.

Reheating: To enjoy the brownies warm, microwave for 10-15 seconds. This brings back the gooey, delicious nature that makes these brownies so indulgent!

Monster Mash Brownies Variations & Substitutions

Feel free to unleash your creativity and customize these Monster Mash Brownies to suit your taste!

Gluten-Free: Substitute regular flour with a gluten-free blend for a delicious gluten-free version without sacrificing flavor.
Nutty Crunch: Add 1 cup of chopped nuts (like walnuts or pecans) to the brownie batter for a delightful texture and nutty flavor.
Minty Twist: Incorporate 1 teaspoon of peppermint extract into the batter for a refreshing minty flavor—perfect for those who love a unique twist!
Vegan Option: Use a flax egg (1 tablespoon ground flaxseed + 2.5 tablespoons water) for each egg and coconut oil instead of butter while making sure to swap in dairy-free chocolate—yummy and vegan-friendly!
Spicy Heat: Add a pinch of cayenne or chili powder to the brownie batter for a fun spicy kick that will surprise your taste buds.
Caramel Surprise: Drizzle some caramel sauce over the brownie squares before frosting for a sweet surprise in each bite!
Fruit Fusion: Fold in 1 cup of chopped berries (like raspberries or strawberries) to the batter for a fruity burst of flavor—this contrasts beautifully with the rich chocolate.
Coffee Boost: Mix in 1 tablespoon of instant coffee or espresso powder to the brownie mix for a rich, mocha flavor that chocolate lovers will adore.

Whether you want to add a new flavor or accommodate dietary needs, these variations will elevate your Monster Mash Brownies to a whole new level of delight! If you're looking for more festive inspirations, check out my Halloween treats collection for more playful ideas!

What to Serve with Monster Mash Brownies

Imagine a lively gathering filled with laughter and festive spirit, where sweet treats take center stage alongside delightful accompaniments.

Vanilla Ice Cream: A scoop of creamy vanilla ice cream serves as a perfect contrast to the rich, fudgy brownies, allowing the flavors to shine together. Picture the moment when warm brownie meets cool cream—pure bliss!
Caramel Sauce: Drizzling warm caramel sauce over your Monster Mash Brownies adds a luxurious sweetness that complements the chocolatey goodness, elevating each bite to an indulgent experience.
Pumpkin Spice Latte: Embrace the cozy, warm flavors of fall with a comforting pumpkin spice latte that echoes the inviting vibes of your festive brownies—perfect for a cozy gathering!
Cheese Plate: A selection of cheeses, such as sharp cheddar and creamy brie, will lend a sophisticated edge, balancing the sweetness of the brownies and inviting interesting flavor contrasts.
Chilled Milk: For a classic pairing, serve a tall glass of cold milk beside your brownies for nostalgic indulgence that connects with the kid in all of us.
Coffee: Whether hot or iced, the robust flavor of coffee pairs beautifully with the rich brownie experience, awakening your taste buds for an unforgettable night.
Fruit Salad: A fresh fruit salad with seasonal berries and citrus adds a burst of color and freshness, making for a delightful palate cleanser between bites of chocolatey goodness.
Chocolate Milkshake: Blend up a decadent chocolate milkshake to double down on the chocolate experience, making your dessert meal an adventure worth savoring.

These delightful pairings transform your indulgent Monster Mash Brownies into a full-fledged dessert feast that will charm the hearts (and taste buds) of all your guests!

Make Ahead Options

These Monster Mash Brownies are perfect for meal prep, making them an excellent choice for busy home cooks looking to save time! You can prepare the brownie batter up to 24 hours in advance; simply mix and store it in an airtight container in the refrigerator. The frosted decorations can be made ahead, too—just store them separately in the fridge for up to 3 days. When you're ready to bake, pour the batter into your lined tin, bake, and follow the chilling instructions to ensure they remain fudgy and fresh. This way, when it's time to serve, you’ll have a delightful, festive treat with minimal hassle!

Monster Mash Brownies Recipe FAQs

What kind of dark chocolate should I use for the brownies?
Absolutely! I recommend using high-quality dark chocolate with at least 70% cocoa content for an intense flavor. Look for brands that do not include added sweeteners for a richer taste that beautifully complements your Monster Mash Brownies.

How should I store leftover Monster Mash Brownies?
To keep your Monster Mash Brownies fresh, store them in an airtight container at room temperature for up to 3 days. If you want to enjoy them longer, wrap each piece individually in plastic wrap and place them in the fridge for up to a week. This helps to maintain their soft, fudgy texture.

Can I freeze Monster Mash Brownies?
Yes, you can freeze Monster Mash Brownies! Wrap them tightly in plastic wrap, then place them in a resealable freezer bag. They’ll be good for up to 3 months. When you're ready to enjoy them, thaw the brownies in the fridge for a few hours or overnight for the best results.

What do I do if my brownies come out too cakey?
If your Monster Mash Brownies turn out too cakey, it’s often due to overmixing or excess flour. Ensure you measure ingredients accurately, and mix gently until just combined. For future batches, use less flour or a bit more butter to achieve that perfect fudgy consistency everyone loves.

Are these brownies safe for kids with egg allergies?
For those with egg allergies, you can substitute each egg with a mixture of ¼ cup unsweetened applesauce, or ¼ cup mashed banana for a similar binding effect. This will keep your Monster Mash Brownies moist while accommodating dietary needs. Always check the allergies related to your specific ingredients, especially with the food gels in the frosting.

Can I use different colors of food gel for decoration?
The more the merrier! Feel free to experiment with different food gel colors to create your unique monster designs. Mixing colors can add depth and vibrancy to your Monster Mash Brownies, making them even more fun and personalized for any occasion!