Step by Step Tutorial on how to make a Halloween Brain Cake

Halloween is just round the corner. Have you thought of your trick or treat surprise dessert? If not I have one idea that might scare the daylights out of some of you. The Bloody Brain aka Halloween Brain Cake.

Why would anyone wanna do an edible brain? Beats me. One day while scouring the internet for ideas, I thought it will be fun to do a brain drenched in blood that could be eaten. And so because I had left over red velvet cake from an order, it was a “kill 2 birds with one stone” action.

Halloween Brain Cake made out of fondant and edible red gel

This is a fairly simple fondant customized cake. If designing your own cakes scares you, I assure you this Halloween Brain cake takes less “brain cells” in designing than it actually looks. Below is a pictorial guide that I hope will help you make your very own brain cake. It doesn’t have to be for Halloween, it can be for other occasions where you just wanna surprise someone with something bloody disgusting yet bloody yummy. Ok enough of that… this is getting way out of hand..

Step by Step instructions on how to make a Halloween Brain Cake

1) You will need a cake in the shape of a brain. I first baked a red velvet cake in a hemisphere baking pan (It will be round but its ok because you will be carving out some of the cake to form an oval shape). You can use any of your favourite cake recipe but “red cakes” fit in more to the theme.

2) Because my dome cake was not brain shape, I used a knife to carve it to look more oval.

3) Spread your favourite buttercream frosting on the entire cake. You can use jam or whatever spread. The idea is to get the fondant to stick to the cake.

4) When you are done frosting, refrigerate cake for 30mins – 1 hr to set the frosting.


Steps on how to make fondant brain cake for halloween

5) Prepare the fondant. I use homemade Marshmallow fondant for most of my cakes but you can get them in premade packages (I swear by Satin Ice Brand– It’s soft and easy to roll) at any baking stores. Just start off with a white fondant and mix in Wilton’s Ivory edible gel to get that skin tone.

6) Take a pinch of fondant and roll them into long lines of 5mm thickness.

7) Remove cake from the fridge and twist and turn your fondant lines randomly around the cake. It doesn’t have to be neat so just go crazy and fill your brain up.

8) Repeat Steps 6-7 until the entire brain is filled. There should be a distinct line in the middle which separates the left brain from the right brain.

How to make a fondant halloween brain cake

9) Using a brush, spread the red blood (Recipe below) over the brain. If the color is too light, add more red coloring or honey to get the shine.

10) Dip some tissues or knife into the blood and place them beside the plate. There you are ready to serve the brain to your guests.

11) The best part of this entire Halloween Brain cake is then to cut it up. Enjoy!


12) Go crazy with the photos 🙂


How to get the Red Blood


Wilton’s red food coloring ( I prefer this brand over the others as it’s thick and not watery)

– Honey

– Water

– Strawberry Jam (optional)


Mix everything together. If you want a darker red, add in some dark blue. Honey/ Jam is to achieve some sort of shine in the cake. With that I wish you success should you attempt to make your own Halloween brain cake.


Other Halloween Treats you might like: 


Halloween Eyeball Pinata Cake

Step by Step Instructions on how to assemble this cake is included in the post!! SURPRISE YOUR FRIENDS with this awesome pinata cake!



Halloween Orange Cupcake Pots

Save the hassle of buying or wasting $ on cupcake liners and bake these orange cupcakes in their own fruit!!! Creative and fun way of enjoying your cake plus you can WOW your guest at the same time by showing a different innovative side of you!



Halloween Unicorn Cupcakes

Colorful Rainbow Unicorn Vanilla Cupcakes or will you be drawn to the Dark Side of a rich dark Chocolate Speculoos Peanut Butter Cupcake? Pick a Side. You Decide!


Share the love by pinning on Pininterest or visiting @Sherbakes on instagram to view more of my creations 🙂


Halloween Brain cake pictures for Pininterest

This post contains affiliate links. For more information, visit my disclosure page.



  1. Claire Saul
    October 30, 2017 / 9:20 pm

    Loving this – shared link & pic on my Pain Pals Blog reg feature Monday Magic – this week Inspiring posts for Halloween! Will def try to make, Claire

    • Sher Bakes
      October 31, 2017 / 9:13 am

      Aww thanks Claire!! Cant wait to see your version 🙂

Leave a Reply