Sailor Mars Surprise Cake ♡ Sailor Moon Recipe

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Ahh, Sailor Mars. My first favourite character from the Sailor Moon universe, although I have since realised how great Jupiter is with her toughness and love of baking, but this post isn’t about her. It’s about Sailor Mars, because her birthday is on the 17th of April! Well, if we’re being technical, it’s actually her civilian form Rei Hino’s birthday, but anyway.

If you read my recipe posts regularly, you’ll know that I have been trying to branch out in the desserts that I make. Recently I have tried and conquered jelly slice, cheesecake, and whoopie pies, but I decided to go back to basics with this post. Sometimes it’s just fun to whip up a good old fashion vanilla cake, and decorate wildly. Although I did want to add some kind of new element to this post, so I decided to make this a surprise cake!

I had never made a coloured cake before, but it was a lot of fun – certainly a lot easier than colouring a batch of cookie dough, that’s for sure. I love the contrast of the red cake next to the purple icing, and I think all the red decorations made the whole thing look very uniform. For any of you who aren’t fans of the Sailor Moon franchise, Sailor Mars is known for her mostly red outfit and purple bow, which is why I chose those colours for this cake. Now, enough talking, onto the decorating!

You will need:
♡ Your favourite vanilla cake batter, dyed red
♡ Your favourite buttercream frosting, dyed purple (if you can’t find purple food dye, mix blue and red together!)
♡ Cake board
♡ Red Candy Melts
3D Shoe Mould
♡ Red gumballs
♡ Red fondant 
♡ A fondant rolling pin
 Baking paper, a pencil, and scissors
♡ One large heart-shaped cookie cutter
♡ Angled spatula and small knife
Cookie letter stamps
♡ Various red sprinkles (optional)

1. Melt your Candy Melts in 30-second increments in the microwave until completely melted. Tape the two sides of your shoe mould together so they stay in place, then lean the bottom of the pointed end of the shoe on something small so that the shoe is on an angle, and you are able to fill the mould completely without any of the melted candy dripping out. Leave it aside to set. If it’s taking too long, place it in the fridge, but remember to keep it on an angle.

2. Get up a photo of Mars’ planetary symbol on your computer and trace around it onto some baking paper, then cut it out, including the inside of the heart.

3. Bake your cake according the directions, then place on a cake board to cool completely.

4. Cover in purple buttercream, remembering to do a crumb layer first and wait until that sets before adding your top layer. Having a revolving cake stand makes this process a lot easier. Wipe off any excess icing that has fallen onto the cake board with a damp paper towel.

5. Roll out your red fondant and use your heart shaped cookie cutter to cut out a heart. Use your cookie letter stamps to spell out the phrase “I will chastise you” (alternatively, you could also just do “in the name of Mars”, but it’s up to you). 

6. Carefully slide your angled spatula under the heart and place it onto your cake. Remember that there is going to be three main decoration pieces, so choose carefully how you want them placed before you put them on the cake.

7. Roll out some more red fondant onto your baking paper. Get your planetary symbol stencil that you cut out earlier and place it on top of the fondant. Carefully using the tip of your knife to cut out the planetary symbol, then discard the excess fondant. Gently soften any harsh edges with your fingers before using the angled spatula to pick up the symbol and place it onto the cake.

8. By now, your red shoe should be set. Remove the tape and carefully take off one side of the mould. It should come off relatively easily without sticking to the Candy Melt, but go slowly just in case. Take off the other side, then place the shoe on top of the cake.

9. Get your red gumballs and place them all around the outside of the cake, if you wish. I realise that gumballs aren’t the best things to have on a cake as you can’t swallow them, but I am just so in love with their deep red colour that I just had to include them! Decorate the remaining areas of your cake with your chosen red sprinkles. I really love these tiny red lip candies as they remind me of Sailor Mars’ iconic red lipstick.


Cutting into cakes suddenly got a whole lot more fun when you have this beautiful, bright red cake waiting for you underneath! I love the idea of surprise cakes; I’ve already made a batch of cupcakes with fairy floss inside, but I have a whole list of things I want to hide inside of cakes and cupcakes sometime in the future, so keep a look out for those!

DIY Sailor Moon Crystal Star Pinata

If you could have anything come out of a cake when you cut into it, what would it be? Let me know in the comments below, and don’t be afraid to get creative! It doesn’t necessarily have to be practical 😜

Until next time,
Indya xx


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