Ann Reardon

Easy Unicorn Cake


This fun and relatively easy cake, with hardly any fondant. This unicorn cake design was invented by the very talented and amazing Jenna Rae Cakes back in September 2016 and since then they have been appearing every where!

I had tears streaming down my face last night as I read through the names of the victims from the Manchester bombing. How can anyone deliberately set out to be so cruel? Parents have lost children and kids have lost their mums and dads, not to mention those who are just starting the long road to recovery from horrific injuries and burns. I just want to scoop them all up in my arms, give them a great big hug and make it all better. If only kisses could heal injuries and hugs could erase haunting memories. All we can do is pray.

To make this unicorn cake you will need:

3 quantities of my sponge cake recipe
3 quantities of basic vanilla buttercream
150g (5.29 ounces) black fondant
50g (1.76 ounces) of blue, pink and yellow fondant
50g (1.76 ounces) white fondant
gold luster dust
ice-cream cone
simple syrup (equal parts sugar and water heated until the sugar dissolves)
2 cake pop sticks

Make the fondant details as shown in the video, you can make these a couple of days ahead and leave them to dry out or add tylose powder to the fondant so it dries quickly.

Bake you cakes and prepare the buttercream (see links above).

Use a cookie cutter to cut the middle out of your sponge cake. Add some simple syrup, buttercream then continue to layer up the cakes. Ideally a cake this tall should have supports cake board in the centre. You can’t really do that if you want m&m’s down the middle and big tall slices like I wanted. But be warned if you don’t add supports you would not want to be transporting the cake by car because it wouldn’t be stable enough.

Fill the centre with mm’s right up to the top. Then add simple syrup, spread out the frosting and add the top layer of cake. Pipe buttercream all over the outside and spread it out covering up all the gaps over the top and the sides then place it in the fridge.

After an hour take the cake out of the fridge and smooth out any imperfections. Place the left over buttercream into bowls and colour it using gel food colours.

Add the horn to the centre of the cake and then add your ears on either side just poking the cake pop stick down into the cake.

unicorn cake how to

Decorate the cake using a star tip and colored buttercream. For multiple colours in the one bag follow the tutorial in the video. Add some stars to decorate the top.

Cut out some eyelashes, brush in gold and add to the front of the cake.

unicorn cake how to

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My Cookbook

ann reardon crazy sweet creations cookbook
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All recipe quantities in the book are in grams, ounces and cups.

78 Comments View Comments

  1. Rating: 5

    I made an attempt, I think it turned out alright 🙂 thank you for this helpful video!

    • Also with no help from the adults, worst bit, tidying up afterwards ?

  2. Rating: 5

    Thank you for your inspiring video! A unicorn cake brightened our confined Easter lunch. I ran short of buttercream so I decided my unicorn was short-haired…

    • Looks great Charlotte ?? It was a bit strange staying home for Easter in our house too, looks like you made the most of it.

  3. Rating: 5


  4. Rating: 4

    Dear Ann,
    I want to make this cake for my goddaughters baptism, it needs to be transported. Could I just use one stabilizing stick in the middle and do the m&m’s just off center ( i’d hate to leave them out, they are so cool!
    Or could I use 2 sticks to stabilize the cake in front and back around the n&m’s in the center? Would that be enough?
    Thanks for your help!
    Stephanie (your big fan from Stuttgart, Germany)?

    • Hi Stephanie, if you are transporting I’d leave the m&m’s out to be safe

  5. Rating: 5

    Hi wanted to make this for my daughters birthday just wondered what sized pans you used for the sponge? Kind regards , Sophie

    • Hi Sophie, I used 7″ for this cake, but I think 8″ would be better, the wider the base the more stable it is

  6. Rating: 5

    What size pans did you use?

    • Hi Valerie I used 7″ pans for this one but 8″ would be fine

  7. Rating: 4.5

    Im going to try it this weekend

  8. Rating: 4.5

    Made this for my daughters 2nd birthday. Very happy with result. I only did two batch of cake but still 3 x quantity of buttercream. It was plenty high enough. My cakes did shrink in the pan once cooled. Not sure what i’m doing wrong there.

    • looks awesome Gemma ?

  9. Rating: 5

    I tried making the ubicorn cake for my niece’s birthday, made a mess in the kitchen but the kids loved the cake so it was worth it. It was a great idea to put candy inside, thank you Ann!!!

    • Looks amazing Nina! Well done!

  10. Rating: 5

    Hi I want to make this cake for my daughters birthday. Can I make the cakes in advance and freeze them until needed? Kate

    • Hi Kate, Cakes are always better fresh, but yes you can make the sponge prior. Once cool, cover well with plastic wrap to ensure cake is fully sealed and then freeze. Justa note that if you are decorating cakes that have been frozen, it is important to let them fully defrost before frosting or covering with fondant. Otherwise the moisture can seep through.

  11. Rating: 5

    Hi Ann did you make that your self and it look pritty

  12. Rating: 5

    Hi Anne.
    I love your show and tried this cake this week. How do you think I did.
    Ella. Age 11

    • Great work Ella!

  13. Rating: 5

    how did you learn to do that

  14. I can’t find gold dust anywhere in town… can I just use a gold glitter spray paint and not eat those parts?

    • Hi Jennifer, it is not a good idea around food. I get my edible lutre dust from online baking & decorating stores. Hav eyou looked at online suppliers?

    • Rating: 4.5

      Walmart great value edible shimmer spray gold or silver

  15. Rating: 4.5

    I am planning on making this cake this weekend. If I am not adding the M&M’s should I use wooden dowels in the cake.

    • Hi Kara, Because it is a tall cale and you have some large pieces on the top then Yes you will. It is always better to add support , then risking the cake going sliding!

  16. Rating: 5

    Hi Ann! 😉 I’m about to make this cake and I am SO EXCITED!!!! Any suggestions?

  17. Rating: 5

    I love unicorns and that cake. The cake is AWESOME!!!!!!!!!!!!!!!!!!

  18. Rating: 5

    Hello Ann,
    I want to make the flavor of the cake chocolate. is there a video you can suggest for the recipe or what should i add in the sponge recipe to have it come out as chocolate flavor. Thank you! and wonderful video!

  19. Rating: 4.5

    Hello Ann,
    I want to make the flavor of the cake chocolate. is there a video you can suggest for the recipe or what should i add in the sponge recipe to have it come out as chocolate flavor. Thank you!

  20. Rating: 5

    Hi Ann, do you recommend dividing your sponge cake recipe to make rainbow layer inside the unicorn? or is your vanilla cake recipe better for mixing different colour? Thanks!

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