One-Bowl Chocolate Cake

Heat the oven to 175 C. Grease a 23 cm round cake pan and line the base with baking paper.

In a large bowl, whisk all purpose flour, sugar, cocoa powder, baking soda, baking powder and salt. Add egg, buttermilk, vegetable oil and vanilla extract and whisk until smooth, then whisk in coffee. The batter will be thin.

Pour cake batter into lined cake pan and bake until the top springs back and a toothpick in the centre comes out clean or with a few moist crumbs.

Cool baked cake in the pan for 10 minutes, then turn out onto a rack and cool completely.

Bring heavy cream just to a simmer, pour over dark chocolate and leave for 2 minutes, then stir until smooth. Let it thicken for 10 minutes and spread over cooled cake.