Day 43 - Upside down toffee apple cake

In the spirit of bonfire night I made something sweet and warm, and watched fireworks from the comfort of my bedroom window :)
To make this cake I made a basic cake mix, lined the tin with apple slices which I covered with melted butter and sugar, I split the cake mix in half and added cocoa powder to the last half before adding it to the tin which gave a nice tiered effect.