Monster Mash Brownies

Looking for a Halloween dessert that’s as fun as it is delicious?  These Monster Mash Brownies are the ultimate festive treat—rich, fudgy, and topped with colorful candy eyes and sprinkles that bring spooky monsters to life. Perfect for Halloween parties, bake sales, or even just a fun night in, these brownies are guaranteed to disappear fast (just like a monster in the dark!).

Why You’ll Love Monster Mash Brownies

• Kid-Friendly & Fun – Decorate with candy eyeballs, sprinkles, and crushed cookies.

• Rich & Fudgy Base – A classic brownie foundation that’s chewy and indulgent.

• Customizable – Add your favorite Halloween candies or even swirl in peanut butter.

• Festive & Eye-Catching – Perfect for Instagram-worthy Halloween dessert tables.

These brownies aren’t just a dessert—they’re an activity, a decoration, and a conversation starter. Let’s dive into everything you need to know to make the ultimate Monster Mash Brownies at home.

Ingredients for Monster Mash Brownies

Here’s the complete ingredient list for the brownies and monster toppings. You can make everything from scratch or use a boxed brownie mix if you’re short on time.

For the Brownie Base (from scratch):

• 1 cup (2 sticks) unsalted butter

• 2 cups granulated sugar

• 1 cup light brown sugar, packed

• 4 large eggs, room temperature

• 1 tsp vanilla extract

• 1 cup unsweetened cocoa powder

• 1 cup all-purpose flour

• ½ tsp baking powder

• ½ tsp salt

• 1 cup semi-sweet chocolate chips

For the Monster Mash Topping:

• 1 cup Halloween-colored sprinkles (orange, purple, black, green)

• ½ cup candy eyeballs (small & large for variety)

• ½ cup crushed Oreo cookies (for monster “dirt”)

• 1 cup candy-coated chocolates (like M&Ms or Reese’s Pieces)

• Optional: ½ cup mini marshmallows

Required Kitchen Tools

You don’t need anything fancy, but having the right tools will make the process easier:

• 9×13-inch baking pan

• Parchment paper (for easy removal)

• Mixing bowls (large & medium)

• Electric mixer (hand or stand) or whisk

• Spatula

• Measuring cups and spoons

• Wire cooling rack

Step-by-Step Instructions for Monster Mash Brownies

Follow these steps for the best results.

Step 1: Preheat & Prep

Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving a little overhang to lift the brownies out easily.

Step 2: Melt the Butter & Sugar

In a medium saucepan, melt the butter over low heat. Remove from heat and whisk in both sugars until smooth. Let cool slightly.

Step 3: Add Eggs & Vanilla

Whisk in the eggs one at a time, ensuring each is fully incorporated. Stir in vanilla extract.

Step 4: Mix Dry Ingredients

In a separate bowl, sift together cocoa powder, flour, baking powder, and salt. Slowly fold this mixture into the wet ingredients.

Step 5: Stir in Chocolate Chips

Gently fold in the chocolate chips for that extra fudgy texture.

Step 6: Bake

Spread the batter evenly in your prepared pan. Bake for 30–35 minutes, or until a toothpick inserted comes out with moist crumbs (not wet batter). Do not overbake.

Step 7: Cool & Decorate

Once baked, let the brownies cool completely on a wire rack.

Spread melted chocolate or a thin frosting layer on top (optional for stickiness), then sprinkle on the crushed Oreos, candy eyeballs, colorful sprinkles, and chocolates. Get creative—make clusters of eyes to form “monster faces.”

Step 8: Slice & Serve

Use a sharp knife to cut into squares or rectangles. Serve on a spooky platter for maximum effect.

Helpful Tips for Perfect Monster Mash Brownies

Don’t Overbake – The key to fudgy brownies is slightly underbaking. Pull them out when a toothpick shows moist crumbs.

Chill Before Cutting – For clean slices, chill the brownies in the fridge for 30 minutes before cutting.

Boxed Mix Shortcut – No shame in using your favorite brownie mix! Just focus on decorating.

Customize the Monsters – Add gummy worms, candy corn, or even drizzle green slime (melted white chocolate + green food coloring).

Party Prep – Make the brownies a day ahead, but add the monster toppings just before serving for maximum freshness.

Nutritional Value (Per Serving – based on 16 brownies)

• Calories: ~320

• Fat: 15g

• Carbohydrates: 44g

• Sugar: 32g

• Protein: 4g

• Fiber: 2g

(Values will vary depending on candy toppings and portion size.)

Creative Variations of Monster Mash Brownies

If you want to put your own twist on the recipe, here are some spooky variations:

Zombie Swirl Brownies – Swirl green food coloring into cream cheese topping.

Witch’s Cauldron Brownies – Add mini marshmallows on top and drizzle with dark chocolate.

Pumpkin Patch Brownies – Pipe orange frosting pumpkins and use green sprinkles as vines.

Graveyard Brownies – Stick half of an Oreo cookie upright for tombstones, and decorate with candy skeletons.

Serving Ideas for Halloween Parties

These Monster Mash Brownies are the perfect dessert centerpiece for your Halloween dessert table. Serve them alongside:

Pumpkin spice cookies

Caramel apples

Spooky punch with floating eyeball ice cubes

Candy corn snack mix

Arrange the brownies on a black or purple platter and surround with fake spider webs for maximum effect.

Conclusion: Make Your Halloween Spooktacular with Monster Mash Brownies

These Monster Mash Brownies are more than just a dessert—they’re a festive experience. Fudgy, chewy, and decorated with candy eyes, cookies, and sprinkles, they’re guaranteed to wow your guests. Whether you’re hosting a Halloween party, sending treats to school, or just craving something sweet and spooky, this recipe delivers both flavor and fun.

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