Digger cake recipe

(435 ratings)

Digger cake is SO easy to make, but so effective - whether you've made your own sponge or decoarting a shopbought cake.

Birthday cake recipes for kids
Preparation Time40 mins
Cooking Time20 mins
Cost RangeCheap

Digger cake is SO easy to make, but so effective - whether you've made your own sponge or decorating a shop-bought cake. Taming Twins blogger Sarah Barnes uses crushed Oreos to make convincing 'rubble' and having chocolate fingers all round the edge helps to keep the 'dirt' in place. Your little one is going to love this chocolate covered cake! Add your child's favourite digger toys (after washing) and watch their face light up when you present this to them on their special day. This cake serves 6-8 people and will take around 40 mins to decorate. If you're making your cake from scratch, we suggest following Mary Berry's chocolate cake (opens in new tab) recipe first.


  • 1 x chocolate cake
  • 400g readymade chocolate buttercream
  • 3 x 114g packs chocolate fingers
  • 2 x 154g packs of Oreos
  • 1 small bag Maltesers
  • 1 tube Smarties

You will also need:

  • Ribbon
  • 2 small plastic diggers




  1. Sandwich your two cake layers together using the buttercream icing and cover the sides and top of the cake in buttercream. If you are using a readymade cake, go straight to step 2.
  2. Use buttercream to stick chocolate fingers around the edge of your cake, packing them close to each other.
  3. Tie the ribbon around the cake - this will help to keep the chocolate fingers in place.
  4. At the front of the cake, trim down the chocolate fingers and sponge cake so it looks like some of the cake has been dug away.
  5. Bash up all the Oreos into 'rubble'; it works well if you leave some large chunks while some become dusty.
  6. Pour the crushed Oreos into the 'well' created by the chocolate fingers around the cake.
  7. Position your diggers, and decorate with the Maltesers and Smarties.
Top Tip for making Digger cake

This recipe uses crushed Oreos for the 'dirt' but you can use other chocolate biscuits instead like Bourbons or Chocolate Digestives.