Kit Kat Birthday Cake for Boys!


A quick and easy kit kat birthday cake that looks super impressive but you definitely do on your own! 


A couple of years ago I made a Kit Kat birthday cake for a friend’s 13th birthday. It was girly and fun and I knew right away that I would make a boy version for one of my own kiddos someday. My oldest turned 7 this year and asked for a real party with school friends for the first time. We were really excited for him and I decided this was the perfect time to remake the Kit Kat Cake! Besides, who doesn’t love their kids coming home in a sugar coma? 😉

kit kat birthday cake

Kit Kat Birthday Cake for a Boy’s Birthday

5.0 from 7 reviews
Kit Kat Candy Cake
Recipe type: Dessert
Serves: 21
Choose colours that work for your theme
  • 1 boxed cake mix, any flavour
  • Butter cream icing
  • 10 Kit Kat bars
  • m&m's or Smarties
  • Gum balls
  • Ribbon
  1. Make cake as directed in two 9" rounds, trim the top of one to make a flat surface.
  2. Spread icing on the flat top and layer the other round on top. Icing generously all over.
  3. Push your kit kat bars into the sides. Hold them in place with a fun ribbon.
  4. Sprinkle the m&m's or Smarties over the top of the cake.
  5. Using a dab of butter cream icing, 'glue' the gum balls in place, between each kit kat stick.

I used a rainbow chip cake mix for this cake and the Kit Kat’s were actually the new Caramel and Mint bars. These came in multi pack sleeves of two bars each, as opposed the regular multi packs that have the full sized bars. Either way is fine, you’ll need about 40-42 individual sticks for a 9″ cake. I went with a fun blue and red theme, and added in the yellow for a pop of colour! I like Wilton’s recipe for buttercream icing, and just tinted it a light blue colour.

To serve, cut pie shaped slices, two kit kats wide make a good serving size. 

kit kat birthday cake



At the risk of a gender stereotyping backlash, you can view my ‘girl’ version of the Kit Kat cake as well, which really just means it was very pink! Feel free to use whatever colour you like for any gender. 

Give this birthday cake idea a pin to save for later! 


Kit Kat birthday cake

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  1. Grea job! I love how put together the cake looks – very cool indeed!

  2. I have seen this recipe before, and it looks amazing. If I were not on Weight Watchers, I’d be tempted to try it.

  3. Brenda Penton says

    That is awesome!! Very nice looking cake!

  4. Venessa B says

    Definitely pulling this out for my sons 6th birthday! His brother’s (and dad) will love it, thanks for the yummy idea

  5. That cake is adorable – too much fun! I’d be diggin’ into that in a second. Nice job!

  6. Oh wow! Looks super yummy! I think I could pull this one off following your recipe! I suck at baking! LOL This looks super easy:)

  7. This looks fabulous! I will attempt this for an upcoming party! Thx for the recipe!

  8. Oh my Gosh, what a colourful, fun cake! My little guys’ birthday is coming up and I may just attempt this!

  9. I love the look of this cake (not to mention the ingredients!). It looks beautiful. Going to have to try this one. Never heard of the new bars, either…I’ll have to look for those. Thanks Jen!

  10. Either version, Girl or Boy, are amazing. I am going to have to show this to my DD1 that is the backer in the house. She would love it. Thanks for the inspiration 🙂

  11. Wendy [mapsgirl] says

    I have seen this on pinterest. I love how they look! Great job! I think i need to try this 🙂

  12. Mmm! Hubs and DD made me one last year for my birthday.. simple and has that wow factor! Mine had malteasers on top… noms!

  13. That looks totally cool! I like the red one too. 🙂 Very creative – and very sweet! 🙂

  14. Love these cakes; I did an Easter version for my middle daughters birthday and everyone loved it. Looks delicious!

  15. Simple, but very nice!

  16. Debbie White Beattie says

    This looks like an awesome cake and I love Kit Kat. I feel a diabetic coma coming on.

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