Fudgy dark chocolate cake

Name: Fudgy dark chocolate cake
Cook time: 30 min
Total time: 30 min
Cuisine: British
Ingredients: 200g caster sugar; 200g softened butter; 4 eggs , beaten; 200g self-raising flour - swap 2 tbsp of the flour for 2 tbsp sifted cocoa powder (we used Green & Black's); 1 tsp baking powder; 2 tbsp milk; 200ml double cream; 50g butter; 3 tbsp clear honey; 200g dark chocolate (use 70% cocoa solids if you can), broken into pieces; top with shaved or grated chocolate