Halloween Monster Brownies

These monstrous Halloween brownies are every bit as easy as they are spooky. And with just a few store bought ingredients, you can whip up this frightful treat in just 20 minutes.

You guys know this girl loves a good Halloween treat. I mean, we haven't even hit the first official day of fall and here I am already adding new Halloween content to the blog.

I can't help myself. It's a problem. #SorryNotSorry

But you know what I love even more than Halloween goodies?

EASY Halloween goodies!

And these monster brownies are the best of both worlds: Spooky Halloween treat on the outside, store bought time-saving sweetness on the inside.

Don't worry, if you're all about homemade treats, I've got you covered with some delicious options below. But if you're not, this tutorial has some easy store bought options to save you time.

How to make these Halloween brownies

First, make your brownies.

If you want to make your own, I highly recommend the brownie recipe from these s'more brownies. They're extra thick, chewy and fudgy.

You can also opt for a store bought brownie mix or even buy the brownies, already baked, from your local bakery. Let's be honest, you're going to cover them in frosting so no one will be the wiser.

Whatever you decide, the rest of this recipe is formulated around a 9"x 9" square of brownies, so that's something to keep in mind.

Second, make your frosting.

You'll need roughly 1 ½ lb of frosting for this recipe. If you're looking for a traditional buttercream, this is my favorite recipe for Italian meringue buttercream, although it does take about 20 minutes to make.

For something a little easier but still homemade, I highly recommend this marshmallow buttercream recipe. 

But if you're looking to save time, store bough works just as well. For store bought, you'll need about 1 ½ jar of frosting, and I recommend a fluffy frosting over a creamy frosting as the fluffy kind makes for a "hairier" look.

Third, frost your brownies.

Separate your frosting evenly between three bowls. Use food gel coloring to tint one green, one orange and one purple, adding food coloring until you reach the shade you want.

Spoon the frosting into three separate piping bags with a Wilton tip 233 on the end. 

Pipe the frosting onto the top of your brownies, releasing as you pull the bag up and away to create the "hair." Continue adding frosting until the entire top of the brownie is covered.

Finally, add the finishing touches.

To finish off the brownies, add royal icing eyes, bone shaped sprinkles and colored pieces of fondant or candies.

Tips for making these brownies

• Working ahead: If you want to save some time by making your brownies in advance, they can be kept for 3-4 days at room temperature in an air tight container or plastic wrap.
• Store bough frosting: I recommend a fluffy frosting over a creamy frosting as the fluffy kind makes for a "hairier" look. A creamy, stiffer frosting is more likely to simply stand straight up.
• Food coloring: Be sure to use a gel food coloring when tinting your frosting as a liquid food coloring will change the consistency of the frosting. If you're going for a really pigmented color, the liquid food coloring will make the frosting too runny.
• Fill that piping bag like a pro: Spoon your frosting onto a large piece of plastic wrap, roll and twist the ends. Trim one end so there’s about ½” in length, drop your frosting into the piping bag (short end first) with the tip already on and pipe!
• Piping with just one tip: If you're working with just one 233 tip, I recommend piping just one color at a time and using piping couplers to make it easy to remove the tip. Be sure to rinse out the tip between each color.
• Storing frosted brownies: While the finished brownies don't store well because you can't cover the frosting without ruining the design, you can place them in an air tight container that can be closed without touching the frosting. These brownies will keep for 3-4 days from the day they were baked.

Did you make this recipe? I’d love to hear how it went in the comments below. Better still, snap a photo and tag it on Instagram with #thesimplesweetlife. I love seeing your creations!

Recipe

Monster Brownies

Print Recipe

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5 from 11 reviews

These monstrous Halloween brownies are every bit as easy as they are spooky. And with just a few store bought ingredients, you can whip up this frightful treat in just 20 minutes.

• Author: The Simple, Sweet Life
• Prep Time: 20 minutes
• Total Time: 20 minutes
• Yield: 12 slices
• Category: Dessert
• Cuisine: American

Ingredients

Scale 1x2x3x

• One 9"x 9" square of brownies
• 1 ½ lb frosting
• Food gel coloring in green, orange and purple
• Royal icing eyes
• Optional: sprinkles and fondant for decorating

Cook Mode Prevent your screen from going dark

Instructions

1. Start with a 9"x 9" square brownie. You can buy these at the store, as a box mix or use this recipe to make your own.
2. Make 1 ½lb of frosting using this recipe for Italian meringue buttercream, marshmallow buttercream or by buying it at the store.
3. Separate your frosting evenly between three bowls.
4. Use food gel coloring to tint one green, one orange and one purple, adding food coloring until you reach the shade you want.
5. Spoon the frosting into three separate piping bags with a Wilton tip 233 on the end.
6. Pipe the frosting onto the top of your brownies, releasing as you pull the bag up and away to create the "hair."
7. Continue adding frosting until the entire top of the brownie is covered.
8. To finish off the brownies, add royal icing eyes, bone shaped sprinkles and colored pieces of fondant or candies.

Notes

• Working ahead: If you want to save some time by making your brownies in advance, they can be kept for 3-4 days at room temperature in an air tight container or plastic wrap.
• Store bough frosting: I recommend a fluffy frosting over a creamy frosting as the fluffy kind makes for a "hairier" look. A creamy, stiffer frosting is more likely to simply stand straight up.
• Food coloring: Be sure to use a gel food coloring when tinting your frosting as a liquid food coloring will change the consistency of the frosting. If you're going for a really pigmented color, the liquid food coloring will make the frosting too runny.
• Fill that piping bag like a pro: Spoon your frosting onto a large piece of plastic wrap, roll and twist the ends. Trim one end so there’s about ½” in length, drop your frosting into the piping bag (short end first) with the tip already on and pipe!
• Piping with just one tip: If you're working with just one 233 tip, I recommend piping just one color at a time and using piping couplers to make it easy to remove the tip. Be sure to rinse out the tip between each color.
• Storing frosted brownies: While the finished brownies don't store well because you can't cover the frosting without ruining the design, you can place them in an air tight container that can be closed without touching the frosting. These brownies will keep for 3-4 days from the day they were baked.

Nutrition

• Serving Size: 1 slice

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