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Easy Halloween Brownies: 7 Fun Decorating Ideas!

These easy Halloween brownies would make great Halloween treats for kids! Take these easy Halloween treats for school parties, or just make these cute Halloween desserts with your kids as a fun fall activity!

We are smack dab in the middle of Fall Break. Yes, my kids get a whole week off of school every October. And I get a whole week of trying to be productive while also playing 32 board games and making 46 snacks per day.

After doing some of these fun and FREE activities to get the kids out of the house, I was ready for a good ‘ol PJ day. (For those of you that are new here, I am a BIG proponent for PJ days… when you stay in your pajamas ALL DAY LONG and just hang out at home. Any excuse to not put on a bra, am I right?!)

And with Halloween right around the corner, I thought decorating Halloween brownies (while also wearing PJs!) would be a fun way to keep the kids entertained for a bit.

And to really up the fun ante, I decided that we would make SEVEN different Halloween-themed brownies.


Because making a single treat, like my super cute Chocolate Apple Turkeys, can start to feel like a monotonous assembly line. Even though the results are still adorable!

So I rounded up a few baking and decorating supplies, sketched out some quick designs for Halloween brownies, and we went to (sugar) town!

Here are the supplies that I used:

  • TWO boxes of Duncan Hines Triple Supreme Chunk Brownie mix
  • Pillsbury Creamy Supreme White Frosting
  • Betty Crocker Cookie Icing in black
  • Halloween Candy Decorating Kit from Walmart (Wilton makes a good one, too!)
  • Brach’s Pumpkins
  • Wilton sprinkles in orange, yellow, and green (you can buy these at Michael’s for $1.00 per pack)
  • Wilton gel color in Leaf Green
  • Light corn syrup
  • Red food coloring (the liquid drops NOT the gel)
  • Oreos
  • A mini spray bottle (I got mine in the travel toiletries section of Walmart)
  • Icing piping bag and petal piping tip
  • Round cookie cutter

And the best part is, I was able to create all of these fun Halloween brownies from ONE PAN of brownies (that I made using TWO boxes of Duncan Hines Supreme Triple Chunk brownie mix – my favorite boxed brownies ever!)

Just mix the required ingredients for TWO boxes of brownies together in one bowl and spread all of the batter in a 9″ x 13″ Pyrex to bake.

I also mixed up all of my green icing at once by separating out about 1/3 of the can of white frosting in a small bowl. Then add green coloring gel until you reach the desired color. That way you get enough green AND white icing for all of your Halloween brownies from just ONE can of frosting.

If you want to try this fun and easy fall activity with your kids (or grandkids!), then here are some easy brownie decorating ideas that are perfect for kids:

How to Make Halloween Brownies – 7 Decorating Ideas

How to Make Mummy Halloween Brownies

For the mummy Halloween brownies, you will need WHITE canned frosting, a piping bag with a petal piping tip, candy eyes, and black icing.

Side Note – I use pre-made white canned icing for lots of different baking projects because it is so easy to tint it and it’s much cheaper than making your own. I recently did a color test of two different “white” icings. Here’s what I found:

So if you’re looking for the whitest store-bought canned icing (for ghosts, snowmen, etc) then the Pillsbury Creamy Supreme White Frosting is the winner.

But back to how to make Mummy Brownies:

Cut brownies into squares.

Pipe white icing “gauze” onto each brownie using a piping bag and a petal piping tip.

Attach candy eyes using icing.

Draw eyebrows over eyes using black cookie decorating icing.

You can also tint your own canned icing using black gel and pipe on your eyebrows, but I was trying to reduce clean up time so I didn’t want to have to prep and wash a second piping bag.

How to Make Pumpkin Patch Halloween Brownies

For the pumpkin patch Halloween brownies you will need to tint your canned frosting with green gel. I LOVE the Leaf Green gel from Wilton because it gives your icing a super bright, almost neon green color. You will also need green sprinkles and pumpkin candies.

The pumpkin patch Halloween brownies were the easiest to make (though ALL of them were easy to make!). Here’s how:

Tint white canned frosting with green coloring gel.

Cut brownies into squares.

Spread green frosting onto each brownie.

Decorate with green sprinkles and pumpkin candies.

How to Make Spider Web Brownies

For the spider web brownies, you will need a round cookie cutter, white canned frosting, black cookie decorating icing, a toothpick, and spider rings.

First, use a round cookie cutter to cut out brownie circles.

We used a circle cookie cutter with a diameter of 2 1/2 inches.

Then, ice each brownie circle with white canned icing.

Draw 3 black circles on top in a bullseye pattern using the black decorating icing.

Starting from the center, drag a toothpick outward through all 3 black lines to the edge of the circle.

For our first spider web brownie, we started from the outside and dragged the toothpick inward to the center… but then our “spider webs” actually looked like dahlia flowers. Oops!

Top with a plastic spider ring.

How to Make Bloodshot Eyeball Brownies

To make the spooky eyeball brownies, you will need a round cookie cutter, white canned frosting, light corn syrup, red food coloring drops, a mini spray bottle, large candy eyeballs, and Oreos.

The bloodshot eyeball brownies were probably the most difficult to make because we decided to make our own edible blood spray. It wasn’t difficult to make, but it did add a few extra steps (and more dishes!). Next time, we will probably just buy a small tube of sparkling red icing gel.

Here’s how we made the eyeball brownies (and DIY edible blood spray):

Mix 1 1/2 teaspoons light corn syrup, 1/2 teaspoon water, and 3 drops of red food coloring in a mini spray bottle.

Be sure to wash your mini spray bottle first. I found mine for 97 cents in the travel toiletry section of Walmart.

Use a round cookie cutter to cut out circular brownies.

Ice each brownie circle with white canned frosting.

Twist apart one Oreo and put the side with the frosting white-side up on top of the round brownie.

Spray the iced brownie and Oreo with the edible blood spray.

You may want to test a few sprays on a paper towel first so that you can see what kind of “blood” splatter it will make.

Use icing to attach a candy eye in the middle of the white part of the halved Oreo.

How to Make Candy Corn Halloween Brownies

To make the candy corn brownies you will need orange and yellow sprinkles and white canned frosting.

These Halloween brownies were also one of the easiest varieties to make. If you have toddlers, then gently sprinkling on the orange and yellow sprinkles in their designated areas would be a fun fine motor skills activity.

Here’s how to make the cute candy corn brownies:

Cut triangle shaped brownies.

Ice the brownie triangles with white canned frosting.

Carefully sprinkle yellow sprinkles on the bottom third of the triangle and orange sprinkles in the middle of the triangle.

How to Make Graveyard Halloween Brownies

To make the graveyard Halloween Brownies, you will need tombstone and bone candies, white canned frosting, green coloring gel, and green sprinkles.

Did you figure out what the hole in the middle of the brownie is?

Yup, it’s an empty grave. (Patting myself on the back!)

Here’s how to make these cute graveyard Halloween treats:

Cut brownies into squares.

Mix white canned frosting with green gel coloring until well blended.

Ice brownie squares with green frosting.

Using a paring knife, carefully cut a rectangle in the center of the brownie.

Be careful to not cut all the way through the brownie, but you want to go deep enough to make it look like an empty grave.

Decorate the “grass” area with green sprinkles and candy bones and tombstones.

How to Make Frankenstein Halloween Brownies

For the Frankenstein brownies you will need white canned frosting, green coloring gel, candy eyes, and black cookie decorating icing.

These brownies were also very simple to make:

Mix white canned icing and green coloring gel in a small bowl.

Cut brownies into squares and ice with green frosting.

Attach candy eyes.

Use black decorating icing to “draw” on spiky hair and a slanted smile.

And there you have it… 7 cute and easy decorating ideas for Halloween Brownies!

Which one is your favorite?

Halloween Brownies decorating ideas!

It’s hard for me to pick just one, but I LOVE how the spider web turned out with the orange spider ring!

These Halloween brownies would make great Halloween treats for your kids’ school parties, or you can make a few as small neighbor gifts.

Or you can just eat them all! The kids will have a blast decorating them, but I bet they’ll enjoy eating these cute Halloween treats even more!

And if you enjoyed this post, then be sure to check out some of my other holiday treats and edible gift ideas:

Want even more Halloween snack ideas for kids? Check out these great ideas!

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    1. Hi Andrea! I just baked them according to the package instructions… the baking time will vary depending on which boxed brownies you buy. 🙂