Chocolate Number Cake

A Chocolate Cake with fully customisable edible number topper - perfect for birthdays and anniversaries!

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Our Chocolate Number Cakes are ideal for birthdays or anniversaries! Whether you're celebrating someone's 18th birthday or a 40th wedding anniversary, it's easy to create a number cake with Sponge. Simply choose your topper design, pop in the number you want to appear on the cake, and review your design. We've got a great range of toppers to choose from, so you're sure to find one fit for your occasion!


  • Check mark Recyclable packaging
  • Check mark Secure outer box
  • Check mark Bio-degradable film
  • Check mark UK wide delivery available
  • Check mark Create the perfect gift with personalisation extras
  • Check mark Cutting guide included for the perfect portion size

Storage & Care

  • Check mark Allow the cake to come to room temperature before eating, the butter cream shouldn't be hard!
  • Check mark Once opened, store at room temperature in an air tight container.
  • Check mark Leftovers? Occasion not for a few days? Keep wrapped and store in the freezer for up to 6 months.
  • Check mark Use our included cutting guide for the generous portion size
  • Check mark Keep uncovered as it will dry out
  • Check mark Eat the cake straight out of the fridge or freezer - the cakes needs to be up to room temperature.
  • Check mark Leave cakes in direct sunlight as the butter icing may melt.
  • Check mark Leave unattended near kids, as the temptation will be too much!

Ingredients & allergens


Cake: Sugar, margarine (palm oil, rapeseed oil, salt, emulsifier E475, flavouring, sunflower oil, colours (curcumin, annatto), eggs, self raising flour (wheat flour, raising agents (sodium bicarbonate, mono calcium phosphate), calcium carbonate, iron, niacin, thiamin), butter (milk), dark chocolate (cocoa mass, sugar, cocoa butter, milk powder, emulsifier (soya lecithin), vanilla flavour), white chocolate (sugar, cocoa butter, whole milk powder, soya lecithin, vanilla flavouring), cocoa powder, milk chocolate (sugar, cocoa butter, whole milk powder, emulsifier (soya lecithin), vanilla flavouring).

Topper: Sugar, starches (E1422, E1412), maltodextrin, glycerol (E422), water, stabilizer (E414, E415,E460i), dextrose, emulsifiers (E435, E491, E471), food colour (E171), citric acid (E330), artificial flavours, preservative (E202)

Ink: Water, humectant (E422), propylene glycol (E490), preservative (E202), food colors (E122-carmoisine, E133, E102-tartrazine, E124, E124-ponceau), acidity regulator(E330).

ALLERGENS IN BOLD. Made in a kitchen which handles eggs, nuts, milk, soya & sulphites.


  • Ordered the Chocolate Number cake for 8 for an Aunt's 90th birthday. The cake was delivered along with a small bottle of fizz and a birthday card exactly when Sponge said it would. The feedback from my Aunt was that it was superb and it didn't last very long as it was so delicious. Well done Sponge my favourite x
    Medium Chocolate Number Cake
    Andrea E -
  • Defenetly recomend to other people as good value for the money I paid.Ultimently it tasted amazing which is the aim.
    Medium Chocolate Number Cake
    Claire L -
  • Great service will continue to use Sponge as number one place to buy cakes
    Medium Chocolate Number Cake
    Mark B -
  • Lovely depth of Sponge, very professional looking, very happy!
    Medium Chocolate Number Cake
    Lesley R -
  • The cake was a good size. We cut 7 slices to start with of ample size and there was enough left to cut another 3 I would say. Definitely big enough for 8 slices. The cake was moist and the butter icing filling was lovely. The topper we had chosen looked lovely. Thank you so much for a lovely cake.
    Medium Chocolate Number Cake
  • Lovely chocolate cake! Even enjoyed by people who don’t normally like chocolate cake. Delicious!
    Large Chocolate Number Cake
    Francesca W -
  • As always a great product.
    Large Chocolate Number Cake
    Louise H -
  • Everyone who saw and had a slice loved it.
    Medium Chocolate Number Cake
    Melanie M -
  • I did not see it.
    Medium Chocolate Number Cake
    Joan B -
  • Everything was top notch except the delivery as noted above. We were so pleased that we intend to purchase another cake shortly.
    Medium Chocolate Number Cake
    Christine C -
  • Sponge was so fresh and the butter icing was delicious, great presentation and very moreish!
    Medium Chocolate Number Cake
    Mel O -
  • Quality ingredients went into this moist and flavoursome chocolate cake. The size was perfect for portioning for six to eight slices depending on how large a slice you want. These really are the best online cakes I have tried.
    Medium Chocolate Number Cake
    Samantha C -
  • My friend loved it. Went in minutes!
    Medium Chocolate Number Cake
    Fe W -
  • taste and flavour extremely delicious
    Large Chocolate Number Cake
    ELLEN R -
  • I wish I could but I didn’t get to taste them. Everyone raved about the rainbow cake though
    Large Chocolate Number Cake
    Kieran D -
  • Perfect for our needs
    Large Chocolate Number Cake
    Tony E -
  • Love SPONGE cakes, they are convenient and tasty
    Medium Chocolate Number Cake
    Shelley M -