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Spectacular Rainbow Painted Party Cake Tutorial | Cupcake Jemma

Sally and I are back to show us how to make a spectacularly flamboyant cake using a painted buttercream technique. You don’t have to make it rainbowy but why wouldn’t you!? Hope you like it!

You will need…
A cake! – We used this recipe but across 6 x 7″ tins –
Buttercream – we used 2 times my recipe –

Various food colour pastes/gels
Gold leaf (optional)
Meringues and sprinkles for decorations




MY INSTAGRAM: @cupcakejemma
CAKESTAGRAM: @crumbsanddoilies


Crumbs & Doilies
1 Kingly Court



  1. I am a Baker too says:

    Are they sisters

  2. lanetta davis says:

    omg i love it

  3. Helens Caketastic Creations says:

    love this, going to have to make a cake to give this ago even if its just for me!!! 😉 xx

  4. Debbie Hargreaves says:

    Oooh, could you make them look like peacock feathers please? I’ve been asked to make a wedding cake with a peacock topper and feathers cascading down the side of all 3 tiers….pretty please?

  5. Abileny flores says:

    Its really beautiful!!!!
    It kinda looks like a peacock tail 🦚

  6. Joebert Novis says:

    Black forest cupcake plsss

  7. Shikin Saerah says:

    Love the colour blend 😍😍😍

  8. Jenifer Alvarez says:

    So pretty!

  9. Sanya Arora says:

    Sorry but doesn’t rainbow have seven colours?😐

  10. orlybabe says:

    Since Sally is the queen of frosting, she could be… Buttercream Sally? or Saucy Sally… or… Frosting Sally lol I love how both Jemma and Sally are wearing the same sort of print shirt, I’m getting a strong Crumbs and Doilies vibe here 🌈

  11. Kurlina Balaga Pentiah says:

    It's absolutely gorgeous😍😍

  12. Andrea R says:

    Hello! I'm a fan from Spain and I love your cooking. I'd like to ask you if you could make a video making Danish cookies (the tipical butter cookies)! Thank you for making amazing recipes 🙂

  13. Birdie 703 says:

    Please can you help me , I’m a beginner at cake decorating and have watched many of your tutorials. When it comes to buttercream and you x 2 or x3 your buttercream recipe has it got to mixed separately or can you times the ingredients and beat in one batch , thanks.

  14. Irene F. says:

    Beautiful job…thanks

  15. Theresa` Tennison says:


  16. NIA CHANNEL says:

    Hopefully you can make batman cake Jemma. As I need to make for my son birthday 😀😀

  17. Nik 4 says:

    Love ❤️. The cakes blobs look like a cross between a peacock and a Phoenix tail ❤️❤️🎂🎂 very nice !!

  18. Marie-Anne Durham says:

    The cake looks absolutely stunning🤗🤗Such gorgeous decoration!!🌈🌈

  19. Earl C says:

    Sally is so sweet! You are too. And you two work so well together 🙂

  20. Sheena R says:

    Beautiful! Love your videos

  21. MARIA JOANNOU says:

    This looks great fun!

  22. Amaal Nawaz says:

    Please Jemma can you do a chocolate cake recipe plz ❤️❤️❤️❤️😂😂

  23. lakshmi prasuna says:

    The cake was very nice

  24. 0Deirdre says:

    Is Sally related to you?

  25. Alexandra Salesman says:

    I'm gonna need that color palette swiped all over my face, thanks

  26. Iramadi _ says:

    was that a BTS reference

  27. Thảo Vũ says:

    This cake reminds me of Xayah and Rakan in League of legends because of their wings😂

  28. Clara Fernández Mas says:

    I love Sally so much!!! Let's make a Sally appreciation comment.

  29. Joebert Novis says:

    You two are so adorable as your cake…by the way, How can i talk to you in private?

  30. Marqueljane Bacon says:

    Hi I just wanna ask 😊 in a gas range oven how many minutes should it take to preheat it?? Thanks

  31. Sayuri says:

    You girls look like sisters! Even the lil dimple in your cheeks when you smile! You’re lovely and the cake is absolutely gorgeous 🥰

  32. Anxiety! At the Disco says:

    Red is eye catching. I have a BAKING question!! Do you have any idea why my cupcakes keep coming out cone shaped?? It’s pointy in the middle and at the top. I have tried a few things and I’m not sure what I’m doing wrong. Please help!!❤️❤️✂️✂️📌🧮📌📌❤️📌❤️📌❤️

  33. Diana Neenooth says:

    Happy Thanksgiving Jemma & whole of your Loves ones ..! 😊🙏🏻

  34. Abbie Lomas says:

    Brilliant, that cake looks amazing! But I can’t help but admire your shirts, where are they from? X x. X

  35. chas armo says:

    A Rainbow has 7 colours not 6 so calling it a Rainbow Cake is breach of Trade description rules

  36. TheSilverSea says:

    This is amazing! I wanna eat it!

  37. Iris says:

    Jemma are your cooking temperatures for a fan oven or ‘normal’, thanks

  38. Sharon Craig says:

    It reminded me of a peacock feather with the blue colors.

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