Monster Mash Brownies

These Monster Mash Brownies are spooky, fudgy, and a blast to decorate. I love making them during Halloween season because they’re festive, easy to whip up, and always disappear fast at parties or school events. With gooey chocolate and colorful monster-inspired toppings, they’re as fun to eat as they are to look at.

Why You’ll Love This Recipe

I love how customizable and simple these brownies are. Whether I start with a box mix or a homemade batter, the real magic happens with the toppings—think candy eyes, sprinkles, and vibrant frosting. They’re a creative project and dessert rolled into one, and perfect for getting kids involved in the kitchen.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

• Brownie mix (or homemade brownie batter)

• Eggs

• Oil or butter (depending on mix instructions)

• Water (if using a mix)

• Candy eyeballs

• Halloween-colored sprinkles

• Colored frosting or melted candy melts (purple, green, orange, etc.)

• Optional: Mini M&Ms, crushed cookies, or gummy worms for extra monster flair

Directions

1. I preheat the oven to the temperature listed on my brownie mix or homemade recipe and prepare a baking pan with parchment or nonstick spray.

2. I mix the brownie batter according to the package or recipe instructions and pour it into the pan.

3. I bake until a toothpick inserted in the center comes out with moist crumbs—usually 25–30 minutes.

4. After letting them cool completely, I spread or drizzle colorful frosting over the top.

5. Then the fun part: I decorate with candy eyes, sprinkles, and whatever spooky toppings I like.

6. I cut the brownies into squares and serve, or wrap them individually for a Halloween treat box.

Servings and timing

This recipe makes about 12–16 brownies, depending on how I cut them. Prep time takes about 10 minutes, bake time is around 25–30 minutes, and decorating can take another 10–15 minutes. Total time is roughly 50 minutes.

Variations

• I sometimes swirl peanut butter or cream cheese into the batter before baking for extra flavor.

• For a crunchier texture, I mix in chopped nuts or crushed pretzels.

• To turn them into brownie pops, I cut them into squares, stick them on lollipop sticks, and dip in candy melts.

Storage/Reheating

I store decorated brownies in an airtight container at room temperature for up to 3 days or in the fridge for 5 days. If undecorated, they can be frozen for up to 2 months. I let them thaw before adding frosting and decorations.

FAQs

Can I use homemade brownies instead of a box mix?

Yes, and I often do. A rich, fudgy homemade recipe works great for this.

How do I get clean cuts after decorating?

I chill the brownies slightly and use a sharp knife cleaned between slices for the neatest results.

Can I make these ahead of time?

Yes, I like to bake the brownies a day ahead and decorate the next day for the freshest look.

Are there gluten-free options?

Absolutely. I use a gluten-free brownie mix and check that all decorations are gluten-free as well.

What kind of frosting should I use?

I usually go for store-bought vanilla frosting dyed with gel colors, or I melt candy melts for a smooth finish.

Conclusion

Monster Mash Brownies are my go-to for Halloween fun. They’re simple to make, easy to customize, and irresistibly chocolatey. Whether I’m baking with kids or surprising friends with a spooky treat, these brownies bring a little monster magic to the table.

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