Preheat your oven to 180°C (160°C fan / 350°F) and prepare a loaf tin with baking parchment paper (see video).
Combine the Oat Flour, Baking Powder, Syrup and Milk in a small mixing bowl. Transfer the mixture into the loaf tin. Bake for 10 minutes.
Combine your Yoghurt and Protein Powder (if using) and mix until smooth.
Once baked, pour the coffee over the cake and leave to soak for about a minute. Carefully remove the cake from the tin.
Slice the cake in half, spread half of the Yoghurt on top and dust with Cocoa powder. Add the second piece of cake on top and repeat the Yoghurt and Cocoa process.
