M&M Kit Kat Double Chocolate Cake

Two cake recipes in a week? Yes but I had the perfect excuse! Birthdays for me always call for amazing celebration cakes to be made. And a double chocolate cake has to be the most heavenly thing for me and always at the top of my baking list. It was my Sister’s 20th birthday and when I asked what cake she would like, her answer was a chocolate M&M Kit Kat cake. Even though this isn’t really a recipe I still thought it would be cool to share some photos and show you how you can create a showstopper celebration cake for a birthday or special occasion. This cake was amazingly easy to make, I used my most reliable and favourite chocolate fudge cake recipe, brought a chocolate ganache icing and decorated with a rainbow of M&M’s and chocolatey wafer-y Kit Kat’s. The cake went down storm with both family and friends and it was completely devoured in a record time. Enjoy guys!

m and m cake with kit kat

cake pictures

You’ll be surprised how easy this cake is to decorate. It looks so visually amazing! Just spread your favourite chocolate ganache icing all over the cake, stick the Kit Kat’s all around the outside and then pour over the M&M’s. That’s literally it and the cake looks absolutely stunning! And as you can tell it makes an amazing birthday cake.

m and m cake above

m and m cake


Cake (Makes 2 x 8 inch cakes)

1 3/4 cups of plain flour (all purpose)

2 cups of caster sugar

2 teaspoons of bicarbonate of soda (baking soda)

1 teaspoon of baking powder

1 teaspoon of salt

3/4 cup of good-quality cocoa powder

2 free-range eggs (I used medium sized)

1 cup of buttermilk

1/2 cup of Vegetable oil

1 cup of freshly brewed coffee (use a nice strong coffee)

To decorate- 

Approx. 450g of Chocolate fudge icing- you can use homemade if you prefer

Chocolate M&M’s, Kit Kat’s


1. Preheat your oven to 180 degrees C Fan. Line two 8 inch cake tins with some baking parchment and grease the sides with some butter. Then set aside. Sift all the dry ingredients into a large mixing bowl (the flour, sugar, bicarb, baking powder, salt and cocoa.) Mix with a wooden spoon, just to combine.

2. Then add the eggs, buttermilk, oil and the freshly brewed coffee. Mix until all the ingredients are well combined and they are no lumps in the batter- don’t overmix, just mix until you can’t see any lumps of flour!

3. Ladel the cake mix into the tins and then bake in the oven for 35-40 minutes or until the cakes are well risen and a cake tester comes out clean. Once cooked, allow to cool in tins for 30 minutes, then remove from tins and leave to cool completely on a wire rack.

4. To decorate, spread a thin layer of the fudge icing onto one cake layer. Then sandwich together with the over cake half. Spread the remaining ganache around the outside of the cake- don’t worry if it doesn’t look perfect as you’re going to decorate with loads of chocolate! Then finish by going around the outside of the cake with the kit kat’s. Then decorate the top with chocolate M&M’s. Slice up and enjoy.

Note: The cake will keep in an airtight container for 3-4 days. 

m and m chocolate cake


cake holding

rebecca cake

Becky with her birthday cake!

160 thoughts on “M&M Kit Kat Double Chocolate Cake

    • Thank you! Kit Kats have always been one of my favourite chocolate bars, they definitely make a great cake decoration! You’d definitely love this recipe! 🙂

  1. It’s the red & white ribbon that set this cake off for me. How lovely and cute! Your sis is a lucky girl.

    Although I confess, I didn’t know they had Kit Kats in London? Or M&M’s, they seem so American to me. Yorkies…right. That’s what I ate when I was in London. Oh London, how I love thee!!!

    • Thanks Laura! The ribbon was just a last minute design idea- so really pleased you liked it! My sister really loved the cake too!
      Yeah, we have quite a lot of popular American sweets here in the UK. Yorkies definitely are my favourite!

  2. The only word I can think of is, “WOW!!” This is amaaaazzzzing!! Absolutely gorgeous, and your pics are awesome!

    • Thanks Mary Frances! Chocolate sweets are definitely brilliant cake decorations for sure! Really pleased you like my pictures, I convinced my sister to have a photo holding the cake! Have a great weekend too!

    • Thanks Marcie! Definitely a brilliant bake to make with your kids, I just know my little cousins would love decorating with the sweets. 🙂

  3. Pingback: Fiesta Friday #19 | The Novice Gardener

  4. What a beautiful and colorful cake, your sister has good taste and is lucky to have you, a great baker to make this wonderful cake for her, thanks for sharing your recipe:)

  5. Jessica!! Welcome Welcome Welcome to Fiesta Friday!! What an absolutely perfect cake to bring to the table this weekend!! Oh my gosh, I love this. I mean, I LOVE it!!! I am so making this cake (and I can’t bake!!)!! Happy Birthday to your sister… and thank you so much for sharing this pretty, and pretty delicious cake with us! I know that everyone else is going to love it! Have a wonderful weekend… Keep on baking! <3

  6. Two cakes in weekend! I don’t know which one I would like for my birthday! I think two of them! A little piece of each one! It’s so nice your cake, congratulations to your sister!

  7. Wow! That is such a beautiful cake! And, it doesn’t seem too hard to make. Thank you for sharing and bringing it to the fiesta. Have a wonderful weekend. 🙂

  8. Oh my goodness Jess, this cake is stunning! Happy birthday to your sister, that was so sweet of you to make this for her. She must have loved it 🙂

  9. Jess, I’ve seen this awesomeness on Pinterest before. . love it!! dude, if I made this for my kids, I would be mom of the year! so wonderful that you baked this for your sister! hope she had a wonderful birthday! Cheers!

  10. This is gorgeous! It looks straight out of a magazine! I would love to receive something this stunning on my birthday! You are such a talent, it’s not even funny!

  11. Jessica, I am absolutely in love with this cake! I love how pretty it is, how easy it sounds to make and of course how chocolaty it is. Definitely not losing the chance to save this one for later!!

  12. Gorgeous cake!!
    The recipe itself is great (I make it myself) but of-course with all these MM – AWESOME
    Who wouldn’t love a huge slice of this cake ?!!

  13. Looks great! I love this method of cake decorating, I’ve never done it with kit kats,but I’ve done a couple with cadbury fingers.

  14. If that was my cake, I would not eat it. I would just sit somewhere and admire the beauty of the cake. It looks very nice and you’ve added all my favourite chocolates. thanks!

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