For this chocolate orange cake I made my favourite moist chocolate cake recipe

I then added orange zest to the batter to give it the chocolate orange flavour.

After that, when the cakes are baking or cooling I made some chocolate buttercream. I added some orange zest to the chocolate buttercream to make it chocolate orange buttercream.

When the chocolate orange cakes cooled down I took one cake and put it on a cake plate, spread some chocolate orange buttercream on it.

I put the second cake on top and added some buttercream on top. You can pipe it on or spread it with a knife. Put some chocolate pieces on top so that there is a piece of chocolate on each slice.

Grating some chocolate on top gives a nice finish but this is optional.

Cut and serve.

Wilton piping nozzles set : https://amzn.to/39qMIHP (affiliate)

Piping bags : https://amzn.to/2N5P1Yg (affiliate)

Chocolate Orange : https://amzn.to/3b40gsd (affiliate)

8 inch round cake tins : https://amzn.to/3rL95Ok (affiliate)